他为什么要把椅子弄坏？

Why should he have destroyed the chair?

youdao

你为什么要把灯打开？

Why would you turn the light on?

youdao

我们这些老师为什么要把时间浪费在这么乏味的工作上呢？

Why should we teachers waste time on such tedious work?

youdao

OK, but before I do that, let me drive home this idea of why this is a recipe.

好了，但是在我做那个之前，我们要把这个想法拉回到,“为什么这是个方法“这个问题上来。

麻省理工公开课 - 计算机科学及编程导论课程节选

Why did they want to make sure that the daughters stayed in the households of their fathers?

为什么他们要把女儿,安排在父亲的家户里？

耶鲁公开课 - 新约课程节选

You'll see why I'm going to make that distinction in a couple of lectures.

为什么我要把这个区分开来,好，那么这跟我的除数例子有什么关系呢？

麻省理工公开课 - 计算机科学及编程导论课程节选