wherefore

I know not wherefore it befell.

我不知为变成这个样子。

Wherefore did you go there?

你为去那儿?

He was angry, wherefore I was afraid to ask him.

他发火了, 所以我不敢去问他。

she took an ill turn, but wherefore I cannot say.

她时运不佳，但是为何我说不准。

We must always go into the whys and wherefores of anything.

我们对任何事情都问一个为。

the whys and wherefores of these procedures need to be explained to students.

办这些手续的缘由都必须一一解释给学生听。