音标：[hwai]
ad. 为什么
n. 原因, 理由
相关词组:
Why not...?
在线英汉词典

why的短语、例句：

why interrog adv 1 for what reason or purpose 为什麽原因或目的
Why were you late? 你为什麽迟到?
Why did you buy a spade? 你买铁 干什麽?
Tell me why you did it. 告诉我你为什麽干那件事?
Do you know why the door is locked? 你知道不知道门为什麽锁上了? 2 (used in front of a v to suggest that sth is unacceptable or unnecessary 用於动词前表示某事不可取或不必要)
Why get upset just because you got a bad mark? 何必因为得的分数差就想不开?
Why bother to write? We´ll see him tomorrow. 还写信干什麽? 我们明天就见到他了. 3 (idm 习语) why ever (used to express surprise 用以表示惊讶) why （究竟）为什麽, 怎麽
Why ever didn´t you tell us before? 你怎麽不早告诉我们呢? why not (used to make or agree to a suggestion用以提出一建议或对一建议表示同意)
Why not go now?现在就去好不好?
`Let´s go to the cinema.´ `Why not?´ ｀咱们去看电影吧.＇｀好哇.＇ why, rel adv 关系副词 (used esp after reason 尤用於 reason 一词之後) for which (reason) 因此（原因）
the reason why he left her 他离开她的原因
That is (the reason) why I came early. 这就是我来早了的原因. why, interj (expressing surprise, impatience, etc 用以表示惊讶、 不耐烦等)
Why, it´s you! 呦, 是你呀!
Why, it´s easy a child could do it! , 这很容易--连孩子都会! why, n (idm 习语) the whys and (the) wherefores the reasons 原因; 缘故; 理由
I don´t need to hear all the whys and the wherefores, I just want to know what happened. 我无需听那些大道理, 我只想知道是怎麽了.