diff --git a/channel/wechatmp/wechatmp_channel.py b/channel/wechatmp/wechatmp_channel.py
index 3bf2df4..12878a7 100644
--- a/channel/wechatmp/wechatmp_channel.py
+++ b/channel/wechatmp/wechatmp_channel.py
@@ -7,6 +7,7 @@ import textwrap
 from channel.chat_channel import ChatChannel
 import channel.wechatmp.reply as reply
 import channel.wechatmp.receive as receive
+from common.expired_dict import ExpiredDict
 from common.singleton import singleton
 from common.log import logger
 from config import conf
@@ -37,7 +38,7 @@ class WechatMPChannel(ChatChannel):
         self.query1 = dict()
         self.query2 = dict()
         self.query3 = dict()
-
+        self.received_msgs = ExpiredDict(60*60*24) 
 
     def startup(self):
         urls = (
@@ -106,7 +107,9 @@ class SubsribeAccountQuery():
                 message_id = wechat_msg.msg_id
 
                 logger.info("[wechatmp] {}:{} Receive post query {} {}: {}".format(web.ctx.env.get('REMOTE_ADDR'), web.ctx.env.get('REMOTE_PORT'), from_user, message_id, message))
-
+                supported = True
+                if "【收到不支持的消息类型，暂无法显示】" in message:
+                    supported = False # not supported, used to refresh
                 cache_key = from_user
 
                 reply_text = ""
@@ -115,20 +118,28 @@ class SubsribeAccountQuery():
                     # The first query begin, reset the cache
                     context = channel._compose_context(ContextType.TEXT, message, isgroup=False, msg=wechat_msg)
                     logger.debug("[wechatmp] context: {} {}".format(context, wechat_msg))
-                    if context:
+                    if message_id in channel.received_msgs: # received and finished
+                        return 
+                    if supported and context:
                         # set private openai_api_key
                         # if from_user is not changed in itchat, this can be placed at chat_channel
                         user_data = conf().get_user_data(from_user)
                         context['openai_api_key'] = user_data.get('openai_api_key') # None or user openai_api_key
+                        channel.received_msgs[message_id] = wechat_msg
                         channel.running.add(cache_key)
                         channel.produce(context)
                     else:
                         trigger_prefix = conf().get('single_chat_prefix',[''])[0]
-                        if trigger_prefix:
-                            content = textwrap.dedent(f"""\
-                                请输入'{trigger_prefix}'接你想说的话跟我说话。
-                                例如:
-                                {trigger_prefix}你好，很高兴见到你。""")
+                        if trigger_prefix or not supported:
+                            if trigger_prefix:
+                                content = textwrap.dedent(f"""\
+                                    请输入'{trigger_prefix}'接你想说的话跟我说话。
+                                    例如:
+                                    {trigger_prefix}你好，很高兴见到你。""")
+                            else:
+                                content = textwrap.dedent("""\
+                                    你好，很高兴见到你。
+                                    请跟我说话吧。""")
                         else:
                             logger.error(f"[wechatmp] unknown error")
                             content = textwrap.dedent("""\
@@ -139,7 +150,7 @@ class SubsribeAccountQuery():
                     channel.query2[cache_key] = False
                     channel.query3[cache_key] = False
                 # Request again
-                elif cache_key in channel.running and channel.query1.get(cache_key) == True and channel.query2.get(cache_key) == True and channel.query3.get(cache_key) == True:
+                elif cache_key in channel.running:
                     channel.query1[cache_key] = False  #To improve waiting experience, this can be set to True.
                     channel.query2[cache_key] = False  #To improve waiting experience, this can be set to True.
                     channel.query3[cache_key] = False
@@ -149,6 +160,8 @@ class SubsribeAccountQuery():
                     channel.query2[cache_key] = True
                     channel.query3[cache_key] = True
 
+                assert not (cache_key in channel.cache_dict and cache_key in channel.running)
+
                 if channel.query1.get(cache_key) == False:
                     # The first query from wechat official server
                     logger.debug("[wechatmp] query1 {}".format(cache_key))
@@ -159,7 +172,7 @@ class SubsribeAccountQuery():
                         time.sleep(0.1)
                     if cnt == 45:
                         # waiting for timeout (the POST query will be closed by wechat official server)
-                        time.sleep(5)
+                        time.sleep(1)
                         # and do nothing
                         return
                     else:
@@ -174,7 +187,7 @@ class SubsribeAccountQuery():
                         time.sleep(0.1)
                     if cnt == 45:
                         # waiting for timeout (the POST query will be closed by wechat official server)
-                        time.sleep(5)
+                        time.sleep(1)
                         # and do nothing
                         return
                     else:
@@ -198,9 +211,10 @@ class SubsribeAccountQuery():
                         pass
 
                 if float(time.time()) - float(query_time) > 4.8:
-                    logger.info("[wechatmp] Timeout for {} {}".format(from_user, message_id))
-                    time.sleep(1)
-                    return
+                    reply_text = "【正在思考中，回复任意文字尝试获取回复】"
+                    logger.info("[wechatmp] Timeout for {} {}, return".format(from_user, message_id))
+                    replyPost = reply.TextMsg(from_user, to_user, reply_text).send()
+                    return replyPost
                 
                 if cache_key in channel.cache_dict:
                     content = channel.cache_dict[cache_key]