A: Hi, James! 
B: Hi, Mr Black! What’s that behind you?
A:   
B: A robot(机器人)? What can it do for you?
A: It can help me remember a lot of important things.
B: Really? It sounds very interesting. 
A: My wife did.
B:       
A: She is a scientist（科学家）.
B: Why did she make it for you?
A:       
B: May I ask the robot some questions?
A: Sorry. I think it knows too much about me. I don’t like it.
B: I can not understand. If I have one like this, how happy I will be!
A: You will have one very soon. It’s time for class    
B: Me, too. Bye!
A: See you.