Why did you do this (that)? 你怎么这么做？

　　例句：

　　You can't do this to me.

　　你不能这么对我。

　　I do this all the time.

　　我经常会这样。

　　What have you done to me?

　　你对我做了什么？

　　对话：

　　A: If you have any questions, give me a call.

　　如果你有疑问，就打给我。

　　B: I'll do that.

　　好的。

　　A: Sorry, I'm seeing a guy.

　　对不起，我在和别人约会。

　　B: What! You can't do this to me!什么！

　　你怎么能这么对我！

　　A: Let me show you how to do this.

　　我来教你怎么做。

　　B: Yeah! That would be great!

　　啊！那太好了！