我要知道为什么，为了什么，谁，何时。

I know the why, the what, the who, and the when.

youdao

他们想要知道为什么我是适合这份工作的人。

They desire to know why I am the right person for this job.

youdao

如果你要知道为什么有人会用这种服务，这就是原因。

If you've ever wondered why on earth someone would use a service like this - that's why.

youdao

And the question is, so how many pigs does he have, and how many chickens does he have? Wow. What a deep problem, right? But you're going to see why we're going to use this in a second. So you know how to solve this, this is a fifth-grade problem, right?

为了避免歧义，这些猪和鸡都是健全的,现在问题是它到底有多少只猪和鸡呢？,多深刻的一个问题啊，对吗？,但是你将要看到的是,我们为什么要举这个例子,你知道如何解答这个问题？

麻省理工公开课 - 计算机科学及编程导论课程节选

which is, I don't know why I really wanted the tent, but I really, really did.

当时，不知道为什么我那么想要，但是确实很想要。

FAO Schwarz的回忆 - SpeakingMax英语口语达人

In fact, I do this as well, I mean I have water with me and I have no idea why because I'm not particularly dehydrated.

事实上,我也整天带着水壶,我是说我随身带水,但又不知道为什么要带,因为我并没有特别的脱水症状

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选