no wonder /that's why /no surprise难怪找不到人, 都开会去了。No wonder you can't find anybody here; they're all away at a meeting.窗户都打开了,难怪风这么大!All the windows are open, that's why it is so draughty.于是,难怪乎,某种程度上国会成了最不受欢迎的政治机关。No surprise, then, that Congress is, by some measures, the least popular branch of government.