giúp fix lỗi vs. code: import speech_recognition import pyttsx3 from datetime import date robot_ear = speech_recognition.Recognizer() robot_mouth = pyttsx3.init() robot_brain = "" with speech_recognition.Microphone() as mic: print("Robot: T'm Listeing") audio = robot_ear.listen(mic) print("Robot: ... ") try: you = robot_ear.recognize_google(audio) except: you == "" print("you: " + you) if you == "": robot_brain = "I can't hear you, try again" elif you == "hello": robot_brain = "hello Dat" elif you == "today": today = date.today() robot_brain = today.strftime("%B %d, %Y") else: robot_brain = "I'm fine thank you and you" print("Robot: " + robot_brain) robot_mouth.say(robot_brain) robot_mouth.runAndWait()