例句：

　　I don't get it ─ why would she do a thing like that?

　　我不明白——她怎么會(huì)干那種事？

　　If you love each other, why not get married?

　　要是你們彼此相愛(ài)，干嗎不結(jié)婚呢？

　　Why not take a few days off?

　　為什么不休息幾天呢？

　　Why oh why do people keep leaving the door open?

　　人們到底為什么總敞著門(mén)呢？

　　Why are you so dead set against the idea?

　　你為什么那樣死命地反對(duì)這個(gè)主意呢？