forwhy是什么意思

adv.为什么int.因为

1. Forwhy did you choose to study abroad instead of staying in your home country?

你为什么选择出国留学而不是待在你的本国呢？

2. I can't understand forwhy he would make such a foolish decision.

我无法理解他为何会做出如此愚蠢的决定。

为什么；因何；为何。