- 在他们身上发生了什麽仍然是个谜。
What happened to them is still a mystery.
- 你为什麽那样说？
Why do you say that?
- 为什麽你要这么难过？
Why should you be so sad?
- 你为什麽在那里？
Why were you there?
- 你为什麽说了这样的事？
Why did you say such a thing?
- 为什麽你不能早点来？
What prevented you from coming earlier?
- 你为什麽去京都？
What did you go to Kyoto for?
- 今天早上你为什麽迟到了呢？
Why were you late this morning?
- 这就是我为什麽回来的原因。
This is why I came back.
- 你为什麽拒绝了他的提议？
Why did you turn down his offer?
