diff --git a/client/plugins/Camera.py b/client/plugins/Camera.py
index 1cf0ec5..01ac821 100644
--- a/client/plugins/Camera.py
+++ b/client/plugins/Camera.py
@@ -15,9 +15,9 @@ def handle(text, mic, profile, wxbot=None):
         Arguments:
         text -- user-input, typically transcribed speech
         mic -- used to interact with the user (for both input and output)
-        wxBot -- wechat robot
         profile -- contains information related to the user (e.g., phone
                    number)
+        wxbot -- wechat bot instance
     """
     sys.path.append(mic.dingdangpath.LIB_PATH)
     from app_utils import sendToUser
diff --git a/client/plugins/Echo.py b/client/plugins/Echo.py
index 57be22d..2b3159a 100644
--- a/client/plugins/Echo.py
+++ b/client/plugins/Echo.py
@@ -10,9 +10,9 @@ def handle(text, mic, profile, wxbot=None):
         Arguments:
         text -- user-input, typically transcribed speech
         mic -- used to interact with the user (for both input and output)
-        wxBot -- wechat robot
         profile -- contains information related to the user (e.g., phone
                    number)
+        wxBot -- wechat robot
     """
     text = text.lower().replace('echo', '').replace(u'传话', '')
     mic.say(text)
diff --git a/client/plugins/Email.py b/client/plugins/Email.py
index 1c14f1a..79338f2 100644
--- a/client/plugins/Email.py
+++ b/client/plugins/Email.py
@@ -132,6 +132,7 @@ def handle(text, mic, profile, wxbot=None):
         mic -- used to interact with the user (for both input and output)
         profile -- contains information related to the user (e.g., email
                    address)
+        wxBot -- wechat robot
     """
     try:
         msgs = fetchUnreadEmails(profile, limit=5)
diff --git a/client/plugins/Time.py b/client/plugins/Time.py
index 4f02350..58758c7 100644
--- a/client/plugins/Time.py
+++ b/client/plugins/Time.py
@@ -16,6 +16,7 @@ def handle(text, mic, profile, wxbot=None):
         mic -- used to interact with the user (for both input and output)
         profile -- contains information related to the user (e.g., phone
                    number)
+        wxBot -- wechat robot
     """
 
     tz = getTimezone(profile)
diff --git a/client/plugins/Unclear.py b/client/plugins/Unclear.py
index b66d90d..b7a7ff0 100644
--- a/client/plugins/Unclear.py
+++ b/client/plugins/Unclear.py
@@ -24,6 +24,7 @@ def handle(text, mic, profile, wxbot=None):
     mic -- used to interact with the user (for both input and output)
     profile -- contains information related to the user (e.g., phone
                number)
+    wxBot -- wechat robot
     """
     if need_robot(profile):
         robot = get_robot_by_slug("tuling")