diff --git a/mss.py b/mss.py
index 19d860b..980b453 100644
--- a/mss.py
+++ b/mss.py
@@ -39,13 +39,13 @@ def on_message(client, userdata, msg):
 def publish(client):
     global msg
     while True:
-        robot_ear = speech_recognition.Recognizer()
-        with speech_recognition.Microphone() as mic:
+        robot_ear = speech_recognition.Recognizer()  # khởi tạo biến bien robot_ear 
+        with speech_recognition.Microphone() as mic: # khởi tạo biến mic (with giúp dừng thu tiếng)
             print("robot : im listen")
-            audio = robot_ear.listen(mic)
+            audio = robot_ear.listen(mic)            # khởi tạo biến audio = dl nghe được từ mic
 
         try:
-            msg = robot_ear.recognize_google(audio)
+            msg = robot_ear.recognize_google(audio)  # chuyển dl nghe đc sang dạng text
         except:
             msg = ""