You don't want to do it like that.
你不应那样做。
I didn't want to go to a large university.
我当时不想去大的`综合性大学读书。
You can come with us if you want to.
如果你愿意可以跟我们一起来。
What is it you want to see me about?
你找我有什么事？
I know you did it ─ I just want to know why.
我知道这是你干的，我只是想知道为什么。