diff --git a/bot/bot.py b/bot/bot.py
index 850ba3b..fd56e50 100644
--- a/bot/bot.py
+++ b/bot/bot.py
@@ -3,8 +3,12 @@ Auto-replay chat robot abstract class
 """
 
 
+from bridge.context import Context
+from bridge.reply import Reply
+
+
 class Bot(object):
-    def reply(self, query, context=None):
+    def reply(self, query, context : Context =None) -> Reply:
         """
         bot auto-reply content
         :param req: received message
diff --git a/bot/chatgpt/chat_gpt_bot.py b/bot/chatgpt/chat_gpt_bot.py
index 2c8567d..b2e062d 100644
--- a/bot/chatgpt/chat_gpt_bot.py
+++ b/bot/chatgpt/chat_gpt_bot.py
@@ -1,6 +1,8 @@
 # encoding:utf-8
 
 from bot.bot import Bot
+from bridge.context import ContextType
+from bridge.reply import Reply, ReplyType
 from config import conf, load_config
 from common.log import logger
 from common.expired_dict import ExpiredDict
@@ -19,22 +21,19 @@ class ChatGPTBot(Bot):
 
     def reply(self, query, context=None):
         # acquire reply content
-        if context['type'] == 'TEXT':
+        if context.type == ContextType.TEXT:
             logger.info("[OPEN_AI] query={}".format(query))
             session_id = context['session_id']
             reply = None
             if query == '#清除记忆':
                 self.sessions.clear_session(session_id)
-                reply = {'type': 'INFO', 'content': '记忆已清除'}
+                reply = Reply(ReplyType.INFO, '记忆已清除')
             elif query == '#清除所有':
                 self.sessions.clear_all_session()
-                reply = {'type': 'INFO', 'content': '所有人记忆已清除'}
+                reply = Reply(ReplyType.INFO, '所有人记忆已清除')
             elif query == '#更新配置':
                 load_config()
-                reply = {'type': 'INFO', 'content': '配置已更新'}
-            elif query == '#DEBUG':
-                logger.setLevel('DEBUG')
-                reply = {'type': 'INFO', 'content': 'DEBUG模式已开启'}
+                reply = Reply(ReplyType.INFO, '配置已更新')
             if reply:
                 return reply
             session = self.sessions.build_session_query(query, session_id)
@@ -47,25 +46,25 @@ class ChatGPTBot(Bot):
             reply_content = self.reply_text(session, session_id, 0)
             logger.debug("[OPEN_AI] new_query={}, session_id={}, reply_cont={}".format(session, session_id, reply_content["content"]))
             if reply_content['completion_tokens'] == 0 and len(reply_content['content']) > 0:
-                reply = {'type': 'ERROR', 'content': reply_content['content']}
+                reply = Reply(ReplyType.ERROR, reply_content['content'])
             elif reply_content["completion_tokens"] > 0:
                 self.sessions.save_session(reply_content["content"], session_id, reply_content["total_tokens"])
-                reply={'type':'TEXT', 'content':reply_content["content"]}
+                reply = Reply(ReplyType.TEXT, reply_content["content"])
             else:
-                reply = {'type': 'ERROR', 'content': reply_content['content']}
+                reply = Reply(ReplyType.ERROR, reply_content['content'])
                 logger.debug("[OPEN_AI] reply {} used 0 tokens.".format(reply_content))
             return reply
 
-        elif context['type'] == 'IMAGE_CREATE':
+        elif context.type == ContextType.IMAGE_CREATE:
             ok, retstring = self.create_img(query, 0)
             reply = None
             if ok:
-                reply = {'type': 'IMAGE_URL', 'content': retstring}
+                reply = Reply(ReplyType.IMAGE_URL, retstring)
             else:
-                reply = {'type': 'ERROR', 'content': retstring}
+                reply = Reply(ReplyType.ERROR, retstring)
             return reply
         else:
-            reply= {'type':'ERROR', 'content':'Bot不支持处理{}类型的消息'.format(context['type'])}
+            reply = Reply(ReplyType.ERROR, 'Bot不支持处理{}类型的消息'.format(context.type))
             return reply
 
     def reply_text(self, session, session_id, retry_count=0) -> dict:
diff --git a/bridge/bridge.py b/bridge/bridge.py
index 304046e..2b67a8a 100644
--- a/bridge/bridge.py
+++ b/bridge/bridge.py
@@ -1,3 +1,5 @@
+from bridge.context import Context
+from bridge.reply import Reply
 from common.log import logger
 from bot import bot_factory
 from common.singleton import singleton
@@ -28,16 +30,13 @@ class Bridge(object):
     def get_bot_type(self,typename):
         return self.btype[typename]
 
-    # 以下所有函数需要得到一个reply字典，格式如下：
-    # reply["type"] = "ERROR" / "TEXT" / "VOICE" / ...
-    # reply["content"] = reply的内容
 
-    def fetch_reply_content(self, query, context):
+    def fetch_reply_content(self, query, context : Context) -> Reply:
         return self.get_bot("chat").reply(query, context)
 
-    def fetch_voice_to_text(self, voiceFile):
+    def fetch_voice_to_text(self, voiceFile) -> Reply:
         return self.get_bot("voice_to_text").voiceToText(voiceFile)
 
-    def fetch_text_to_voice(self, text):
+    def fetch_text_to_voice(self, text) -> Reply:
         return self.get_bot("text_to_voice").textToVoice(text)
 
diff --git a/bridge/context.py b/bridge/context.py
new file mode 100644
index 0000000..1fbe4d4
--- /dev/null
+++ b/bridge/context.py
@@ -0,0 +1,42 @@
+# encoding:utf-8
+
+from enum import Enum
+
+class ContextType (Enum):
+    TEXT = 1         # 文本消息
+    VOICE = 2        # 音频消息
+    IMAGE_CREATE = 3 # 创建图片命令
+    
+    def __str__(self):
+        return self.name
+class Context:
+    def __init__(self, type : ContextType = None , content = None,  kwargs = dict()):
+        self.type = type
+        self.content = content
+        self.kwargs = kwargs
+    def __getitem__(self, key):
+        if key == 'type':
+            return self.type
+        elif key == 'content':
+            return self.content
+        else:
+            return self.kwargs[key]
+
+    def __setitem__(self, key, value):
+        if key == 'type':
+            self.type = value
+        elif key == 'content':
+            self.content = value
+        else:
+            self.kwargs[key] = value
+
+    def __delitem__(self, key):
+        if key == 'type':
+            self.type = None
+        elif key == 'content':
+            self.content = None
+        else:
+            del self.kwargs[key]
+    
+    def __str__(self):
+        return "Context(type={}, content={}, kwargs={})".format(self.type, self.content, self.kwargs)
\ No newline at end of file
diff --git a/bridge/reply.py b/bridge/reply.py
new file mode 100644
index 0000000..c6bcd54
--- /dev/null
+++ b/bridge/reply.py
@@ -0,0 +1,22 @@
+
+# encoding:utf-8
+
+from enum import Enum
+
+class ReplyType(Enum):
+    TEXT = 1        # 文本
+    VOICE = 2       # 音频文件
+    IMAGE = 3       # 图片文件
+    IMAGE_URL = 4   # 图片URL
+    
+    INFO = 9
+    ERROR = 10
+    def __str__(self):
+        return self.name
+
+class Reply:
+    def __init__(self, type : ReplyType = None , content = None):
+        self.type = type
+        self.content = content
+    def __str__(self):
+        return "Reply(type={}, content={})".format(self.type, self.content)
\ No newline at end of file
diff --git a/channel/channel.py b/channel/channel.py
index a1395c4..62e1ad3 100644
--- a/channel/channel.py
+++ b/channel/channel.py
@@ -3,6 +3,8 @@ Message sending channel abstract class
 """
 
 from bridge.bridge import Bridge
+from bridge.context import Context
+from bridge.reply import Reply
 
 class Channel(object):
     def startup(self):
@@ -27,11 +29,11 @@ class Channel(object):
         """
         raise NotImplementedError
 
-    def build_reply_content(self, query, context=None):
+    def build_reply_content(self, query, context : Context=None) -> Reply:
         return Bridge().fetch_reply_content(query, context)
 
-    def build_voice_to_text(self, voice_file):
+    def build_voice_to_text(self, voice_file) -> Reply:
         return Bridge().fetch_voice_to_text(voice_file)
     
-    def build_text_to_voice(self, text):
+    def build_text_to_voice(self, text) -> Reply:
         return Bridge().fetch_text_to_voice(text)
diff --git a/channel/wechat/wechat_channel.py b/channel/wechat/wechat_channel.py
index 0ba923f..eff788d 100644
--- a/channel/wechat/wechat_channel.py
+++ b/channel/wechat/wechat_channel.py
@@ -7,6 +7,8 @@ wechat channel
 import itchat
 import json
 from itchat.content import *
+from bridge.reply import *
+from bridge.context import *
 from channel.channel import Channel
 from concurrent.futures import ThreadPoolExecutor
 from common.log import logger
@@ -69,10 +71,8 @@ class WechatChannel(Channel):
         from_user_id = msg['FromUserName']
         other_user_id = msg['User']['UserName']
         if from_user_id == other_user_id:
-            context = {'isgroup': False, 'msg': msg, 'receiver': other_user_id}
-            context['type'] = 'VOICE'
-            context['content'] = msg['FileName']
-            context['session_id'] = other_user_id
+            context = Context(ContextType.VOICE,msg['FileName'])
+            context.kwargs = {'isgroup': False, 'msg': msg, 'receiver': other_user_id, 'session_id': other_user_id}
             thread_pool.submit(self.handle, context).add_done_callback(thread_pool_callback)
 
     def handle_text(self, msg):
@@ -89,17 +89,17 @@ class WechatChannel(Channel):
             content = content.replace(match_prefix, '', 1).strip()
         else:
             return
-        context = {'isgroup': False, 'msg': msg, 'receiver': other_user_id}
-        context['session_id'] = other_user_id
+        context = Context()
+        context.kwargs = {'isgroup': False, 'msg': msg, 'receiver': other_user_id, 'session_id': other_user_id}
 
         img_match_prefix = check_prefix(content, conf().get('image_create_prefix'))
         if img_match_prefix:
             content = content.replace(img_match_prefix, '', 1).strip()
-            context['type'] = 'IMAGE_CREATE'
+            context.type = ContextType.IMAGE_CREATE
         else:
-            context['type'] = 'TEXT'
+            context.type = ContextType.TEXT
 
-        context['content'] = content
+        context.content = content
         thread_pool.submit(self.handle, context).add_done_callback(thread_pool_callback)
 
     def handle_group(self, msg):
@@ -123,15 +123,16 @@ class WechatChannel(Channel):
         match_prefix = (msg['IsAt'] and not config.get("group_at_off", False)) or check_prefix(origin_content, config.get('group_chat_prefix')) \
                        or check_contain(origin_content, config.get('group_chat_keyword'))
         if ('ALL_GROUP' in config.get('group_name_white_list') or group_name in config.get('group_name_white_list') or check_contain(group_name, config.get('group_name_keyword_white_list'))) and match_prefix:
-            context = { 'isgroup': True, 'msg': msg, 'receiver': group_id}
+            context = Context()
+            context.kwargs = { 'isgroup': True, 'msg': msg, 'receiver': group_id}
             
             img_match_prefix = check_prefix(content, conf().get('image_create_prefix'))
             if img_match_prefix:
                 content = content.replace(img_match_prefix, '', 1).strip()
-                context['type'] = 'IMAGE_CREATE'
+                context.type = ContextType.IMAGE_CREATE
             else:
-                context['type'] = 'TEXT'
-            context['content'] = content
+                context.type = ContextType.TEXT
+            context.content = content
 
             group_chat_in_one_session = conf().get('group_chat_in_one_session', [])
             if ('ALL_GROUP' in group_chat_in_one_session or
@@ -144,18 +145,18 @@ class WechatChannel(Channel):
             thread_pool.submit(self.handle, context).add_done_callback(thread_pool_callback)
 
     # 统一的发送函数，每个Channel自行实现，根据reply的type字段发送不同类型的消息
-    def send(self, reply, receiver):
-        if reply['type'] == 'TEXT':
-            itchat.send(reply['content'], toUserName=receiver)
+    def send(self, reply : Reply, receiver):
+        if reply.type == ReplyType.TEXT:
+            itchat.send(reply.content, toUserName=receiver)
             logger.info('[WX] sendMsg={}, receiver={}'.format(reply, receiver))
-        elif reply['type'] == 'ERROR' or reply['type'] == 'INFO':
-            itchat.send(reply['content'], toUserName=receiver)
+        elif reply.type == ReplyType.ERROR or reply.type == ReplyType.INFO:
+            itchat.send(reply.content, toUserName=receiver)
             logger.info('[WX] sendMsg={}, receiver={}'.format(reply, receiver))
-        elif reply['type'] == 'VOICE':
-            itchat.send_file(reply['content'], toUserName=receiver)
-            logger.info('[WX] sendFile={}, receiver={}'.format(reply['content'], receiver))
-        elif reply['type']=='IMAGE_URL': # 从网络下载图片
-            img_url = reply['content']
+        elif reply.type == ReplyType.VOICE:
+            itchat.send_file(reply.content, toUserName=receiver)
+            logger.info('[WX] sendFile={}, receiver={}'.format(reply.content, receiver))
+        elif reply.type == ReplyType.IMAGE_URL: # 从网络下载图片
+            img_url = reply.content
             pic_res = requests.get(img_url, stream=True)
             image_storage = io.BytesIO()
             for block in pic_res.iter_content(1024):
@@ -163,69 +164,69 @@ class WechatChannel(Channel):
             image_storage.seek(0)
             itchat.send_image(image_storage, toUserName=receiver)
             logger.info('[WX] sendImage url=, receiver={}'.format(img_url,receiver))
-        elif reply['type']=='IMAGE': # 从文件读取图片
-            image_storage = reply['content']
+        elif reply.type == ReplyType.IMAGE: # 从文件读取图片
+            image_storage = reply.content
             image_storage.seek(0)
             itchat.send_image(image_storage, toUserName=receiver)
             logger.info('[WX] sendImage, receiver={}'.format(receiver))
 
     # 处理消息 TODO: 如果wechaty解耦，此处逻辑可以放置到父类
     def handle(self, context):
-        reply = {}
+        reply = Reply()
 
         logger.debug('[WX] ready to handle context: {}'.format(context))
         
         # reply的构建步骤
         e_context = PluginManager().emit_event(EventContext(Event.ON_HANDLE_CONTEXT, {'channel' : self, 'context': context, 'reply': reply}))
-        reply=e_context['reply']
+        reply = e_context['reply']
         if not e_context.is_pass():
-            logger.debug('[WX] ready to handle context: type={}, content={}'.format(context['type'], context['content']))
-            if context['type'] == 'TEXT' or context['type'] == 'IMAGE_CREATE':
-                reply = super().build_reply_content(context['content'], context)
-            elif context['type'] == 'VOICE':
+            logger.debug('[WX] ready to handle context: type={}, content={}'.format(context.type, context.content))
+            if context.type == ContextType.TEXT or context.type == ContextType.IMAGE_CREATE:
+                reply = super().build_reply_content(context.content, context)
+            elif context.type == ContextType.VOICE:
                 msg = context['msg']
-                file_name = TmpDir().path() + context['content']
+                file_name = TmpDir().path() + context.content
                 msg.download(file_name)
                 reply = super().build_voice_to_text(file_name)
-                if reply['type'] != 'ERROR' and reply['type'] != 'INFO':
-                    context['content'] = reply['content'] # 语音转文字后，将文字内容作为新的context
-                    context['type'] = reply['type']
-                    reply = super().build_reply_content(context['content'], context)
-                    if reply['type'] == 'TEXT':
+                if reply.type != ReplyType.ERROR and reply.type != ReplyType.INFO:
+                    context.content = reply.content # 语音转文字后，将文字内容作为新的context
+                    context.type = ContextType.TEXT
+                    reply = super().build_reply_content(context.content, context)
+                    if reply.type == ReplyType.TEXT:
                         if conf().get('voice_reply_voice'):
-                            reply = super().build_text_to_voice(reply['content'])
+                            reply = super().build_text_to_voice(reply.content)
             else:
-                logger.error('[WX] unknown context type: {}'.format(context['type']))
+                logger.error('[WX] unknown context type: {}'.format(context.type))
                 return
 
         logger.debug('[WX] ready to decorate reply: {}'.format(reply))
         
         # reply的包装步骤
-        if reply and reply['type']:
+        if reply and reply.type:
             e_context = PluginManager().emit_event(EventContext(Event.ON_DECORATE_REPLY, {'channel' : self, 'context': context, 'reply': reply}))
             reply=e_context['reply']
-            if not e_context.is_pass() and reply and reply['type']:
-                if reply['type'] == 'TEXT':
-                    reply_text = reply['content']
+            if not e_context.is_pass() and reply and reply.type:
+                if reply.type == ReplyType.TEXT:
+                    reply_text = reply.content
                     if context['isgroup']:
                         reply_text = '@' +  context['msg']['ActualNickName'] + ' ' + reply_text.strip()
                         reply_text = conf().get("group_chat_reply_prefix", "")+reply_text
                     else:
                         reply_text = conf().get("single_chat_reply_prefix", "")+reply_text
-                    reply['content'] = reply_text
-                elif reply['type'] == 'ERROR' or reply['type'] == 'INFO':
-                    reply['content'] = reply['type']+":\n" + reply['content']
-                elif reply['type'] == 'IMAGE_URL' or reply['type'] == 'VOICE' or reply['type'] == 'IMAGE':
+                    reply.content = reply_text
+                elif reply.type == ReplyType.ERROR or reply.type == ReplyType.INFO:
+                    reply.content = str(reply.type)+":\n" + reply.content
+                elif reply.type == ReplyType.IMAGE_URL or reply.type == ReplyType.VOICE or reply.type == ReplyType.IMAGE:
                     pass
                 else:
-                    logger.error('[WX] unknown reply type: {}'.format(reply['type']))
+                    logger.error('[WX] unknown reply type: {}'.format(reply.type))
                     return
 
         # reply的发送步骤   
-        if reply and reply['type']:
+        if reply and reply.type:
             e_context = PluginManager().emit_event(EventContext(Event.ON_SEND_REPLY, {'channel' : self, 'context': context, 'reply': reply}))
             reply=e_context['reply']
-            if not e_context.is_pass() and reply and reply['type']:
+            if not e_context.is_pass() and reply and reply.type:
                 logger.debug('[WX] ready to send reply: {} to {}'.format(reply, context['receiver']))
                 self.send(reply, context['receiver'])
 
diff --git a/channel/wechat/wechaty_channel.py b/channel/wechat/wechaty_channel.py
index 7ae4683..3a7fe2c 100644
--- a/channel/wechat/wechaty_channel.py
+++ b/channel/wechat/wechaty_channel.py
@@ -11,6 +11,7 @@ import time
 import asyncio
 import requests
 from typing import Optional, Union
+from bridge.context import Context, ContextType
 from wechaty_puppet import MessageType, FileBox, ScanStatus  # type: ignore
 from wechaty import Wechaty, Contact
 from wechaty.user import Message, Room, MiniProgram, UrlLink
@@ -127,11 +128,9 @@ class WechatyChannel(Channel):
         try:
             if not query:
                 return
-            context = dict()
+            context = Context(ContextType.TEXT, query)
             context['session_id'] = reply_user_id
-            context['type'] = 'TEXT'
-            context['content'] = query 
-            reply_text = super().build_reply_content(query, context)['content']
+            reply_text = super().build_reply_content(query, context).content
             if reply_text:
                 await self.send(conf().get("single_chat_reply_prefix") + reply_text, reply_user_id)
         except Exception as e:
@@ -141,10 +140,8 @@ class WechatyChannel(Channel):
         try:
             if not query:
                 return
-            context = dict()
-            context['type'] = 'IMAGE_CREATE'
-            context['content'] = query
-            img_url = super().build_reply_content(query, context)['content']
+            context = Context(ContextType.IMAGE_CREATE, query)
+            img_url = super().build_reply_content(query, context).content
             if not img_url:
                 return
             # 图片下载
@@ -165,7 +162,7 @@ class WechatyChannel(Channel):
     async def _do_send_group(self, query, group_id, group_name, group_user_id, group_user_name):
         if not query:
             return
-        context = dict()
+        context = Context(ContextType.TEXT, query)
         group_chat_in_one_session = conf().get('group_chat_in_one_session', [])
         if ('ALL_GROUP' in group_chat_in_one_session or \
                 group_name in group_chat_in_one_session or \
@@ -173,9 +170,7 @@ class WechatyChannel(Channel):
             context['session_id'] = str(group_id)
         else:
             context['session_id'] = str(group_id) + '-' + str(group_user_id)
-        context['type'] = 'TEXT'
-        context['content'] = query
-        reply_text = super().build_reply_content(query, context)['content']
+        reply_text = super().build_reply_content(query, context).content
         if reply_text:
             reply_text = '@' + group_user_name + ' ' + reply_text.strip()
             await self.send_group(conf().get("group_chat_reply_prefix", "") + reply_text, group_id)
@@ -184,10 +179,8 @@ class WechatyChannel(Channel):
         try:
             if not query:
                 return
-            context = dict()
-            context['type'] = 'IMAGE_CREATE'
-            context['content'] = query
-            img_url = super().build_reply_content(query, context)['content']
+            context = Context(ContextType.IMAGE_CREATE, query)
+            img_url = super().build_reply_content(query, context).content
             if not img_url:
                 return
             # 图片发送
diff --git a/plugins/godcmd/godcmd.py b/plugins/godcmd/godcmd.py
index 3bd24dd..e988452 100644
--- a/plugins/godcmd/godcmd.py
+++ b/plugins/godcmd/godcmd.py
@@ -5,6 +5,8 @@ import os
 import traceback
 from typing import Tuple
 from bridge.bridge import Bridge
+from bridge.context import ContextType
+from bridge.reply import Reply, ReplyType
 from config import load_config
 import plugins
 from plugins import *
@@ -123,13 +125,13 @@ class Godcmd(Plugin):
 
     
     def on_handle_context(self, e_context: EventContext):
-        context_type = e_context['context']['type']
-        if context_type != "TEXT":
+        context_type = e_context['context'].type
+        if context_type != ContextType.TEXT:
             if not self.isrunning:
                 e_context.action = EventAction.BREAK_PASS
             return
         
-        content = e_context['context']['content']
+        content = e_context['context'].content
         logger.debug("[Godcmd] on_handle_context. content: %s" % content)
         if content.startswith("#"):
             # msg = e_context['context']['msg']
@@ -239,12 +241,12 @@ class Godcmd(Plugin):
             else:
                 ok, result = False, f"未知指令：{cmd}\n查看指令列表请输入#help \n"
             
-            reply = {}
+            reply = Reply()
             if ok:
-                reply["type"] = "INFO"
+                reply.type = ReplyType.INFO
             else:
-                reply["type"] = "ERROR"
-            reply["content"] = result
+                reply.type = ReplyType.ERROR
+            reply.content = result
             e_context['reply'] = reply
 
             e_context.action = EventAction.BREAK_PASS # 事件结束，并跳过处理context的默认逻辑
diff --git a/plugins/hello/hello.py b/plugins/hello/hello.py
index 1eb409e..53d87e6 100644
--- a/plugins/hello/hello.py
+++ b/plugins/hello/hello.py
@@ -1,5 +1,7 @@
 # encoding:utf-8
 
+from bridge.context import ContextType
+from bridge.reply import Reply, ReplyType
 import plugins
 from plugins import *
 from common.log import logger
@@ -14,31 +16,31 @@ class Hello(Plugin):
 
     def on_handle_context(self, e_context: EventContext):
 
-        if e_context['context']['type'] != "TEXT":
+        if e_context['context'].type != ContextType.TEXT:
             return
         
-        content = e_context['context']['content']
+        content = e_context['context'].content
         logger.debug("[Hello] on_handle_context. content: %s" % content)
         if content == "Hello":
-            reply = {}
-            reply['type'] = "TEXT"
+            reply = Reply()
+            reply.type = ReplyType.TEXT
             msg = e_context['context']['msg']
             if e_context['context']['isgroup']:
-                reply['content'] = "Hello, " + msg['ActualNickName'] + " from " + msg['User'].get('NickName', "Group")
+                reply.content = "Hello, " + msg['ActualNickName'] + " from " + msg['User'].get('NickName', "Group")
             else:
-                reply['content'] = "Hello, " + msg['User'].get('NickName', "My friend")
+                reply.content = "Hello, " + msg['User'].get('NickName', "My friend")
             e_context['reply'] = reply
             e_context.action = EventAction.BREAK_PASS # 事件结束，并跳过处理context的默认逻辑
 
         if content == "Hi":
-            reply={}
-            reply['type'] = "TEXT"
-            reply['content'] = "Hi"
+            reply = Reply()
+            reply.type = ReplyType.TEXT
+            reply.content = "Hi"
             e_context['reply'] = reply
             e_context.action = EventAction.BREAK  # 事件结束，进入默认处理逻辑，一般会覆写reply
 
         if content == "End":
             # 如果是文本消息"End"，将请求转换成"IMAGE_CREATE"，并将content设置为"The World"
-            e_context['context']['type'] = "IMAGE_CREATE"
+            e_context['context'].type = "IMAGE_CREATE"
             content = "The World"
             e_context.action = EventAction.CONTINUE  # 事件继续，交付给下个插件或默认逻辑
diff --git a/voice/baidu/baidu_voice.py b/voice/baidu/baidu_voice.py
index adab169..531d8ce 100644
--- a/voice/baidu/baidu_voice.py
+++ b/voice/baidu/baidu_voice.py
@@ -4,6 +4,7 @@ baidu voice service
 """
 import time
 from aip import AipSpeech
+from bridge.reply import Reply, ReplyType
 from common.log import logger
 from common.tmp_dir import TmpDir
 from voice.voice import Voice
@@ -30,8 +31,8 @@ class BaiduVoice(Voice):
             with open(fileName, 'wb') as f:
                 f.write(result)
             logger.info('[Baidu] textToVoice text={} voice file name={}'.format(text, fileName))
-            reply = {"type": "VOICE", "content": fileName}
+            reply = Reply(ReplyType.VOICE, fileName)
         else:
             logger.error('[Baidu] textToVoice error={}'.format(result))
-            reply = {"type": "ERROR", "content": "抱歉，语音合成失败"}
+            reply = Reply(ReplyType.ERROR, "抱歉，语音合成失败")
         return reply
diff --git a/voice/google/google_voice.py b/voice/google/google_voice.py
index 6c00892..74431db 100644
--- a/voice/google/google_voice.py
+++ b/voice/google/google_voice.py
@@ -6,6 +6,7 @@ google voice service
 import pathlib
 import subprocess
 import time
+from bridge.reply import Reply, ReplyType
 import speech_recognition
 import pyttsx3
 from common.log import logger
@@ -32,16 +33,15 @@ class GoogleVoice(Voice):
                         ' -acodec pcm_s16le -ac 1 -ar 16000 ' + new_file, shell=True)
         with speech_recognition.AudioFile(new_file) as source:
             audio = self.recognizer.record(source)
-        reply = {}
         try:
             text = self.recognizer.recognize_google(audio, language='zh-CN')
             logger.info(
                 '[Google] voiceToText text={} voice file name={}'.format(text, voice_file))
-            reply = {"type": "TEXT", "content": text}
+            reply = Reply(ReplyType.TEXT, text)
         except speech_recognition.UnknownValueError:
-            reply = {"type": "ERROR", "content": "抱歉，我听不懂"}
+            reply = Reply(ReplyType.ERROR, "抱歉，我听不懂")
         except speech_recognition.RequestError as e:
-            reply = {"type": "ERROR", "content": "抱歉，无法连接到 Google 语音识别服务；{0}".format(e)}
+            reply = Reply(ReplyType.ERROR, "抱歉，无法连接到 Google 语音识别服务；{0}".format(e))
         finally:
             return reply
     def textToVoice(self, text):
@@ -51,8 +51,8 @@ class GoogleVoice(Voice):
             self.engine.runAndWait()
             logger.info(
                 '[Google] textToVoice text={} voice file name={}'.format(text, textFile))
-            reply = {"type": "VOICE", "content": textFile}
+            reply = Reply(ReplyType.VOICE, textFile)
         except Exception as e:
-            reply = {"type": "ERROR", "content": str(e)}
+            reply = Reply(ReplyType.ERROR, str(e))
         finally:
             return reply
diff --git a/voice/openai/openai_voice.py b/voice/openai/openai_voice.py
index 3b77c52..2e85e10 100644
--- a/voice/openai/openai_voice.py
+++ b/voice/openai/openai_voice.py
@@ -4,6 +4,7 @@ google voice service
 """
 import json
 import openai
+from bridge.reply import Reply, ReplyType
 from config import conf
 from common.log import logger
 from voice.voice import Voice
@@ -16,16 +17,15 @@ class OpenaiVoice(Voice):
     def voiceToText(self, voice_file):
         logger.debug(
             '[Openai] voice file name={}'.format(voice_file))
-        reply={}
         try:
             file = open(voice_file, "rb")
             result = openai.Audio.transcribe("whisper-1", file)
             text = result["text"]
-            reply = {"type": "TEXT", "content": text}
+            reply = Reply(ReplyType.TEXT, text)
             logger.info(
                 '[Openai] voiceToText text={} voice file name={}'.format(text, voice_file))
         except Exception as e:
-            reply = {"type": "ERROR", "content": str(e)}
+            reply = Reply(ReplyType.ERROR, str(e))
         finally:
             return reply