Before you know it
US /bɪˈfɔr ju noʊ ɪt/
UK /bɪˈfɔː ju nəʊ ɪt/
成语
不知不觉中, 很快
very quickly; sooner than you expect
示例:
•
The children will be grown up before you know it.
不知不觉中，孩子们就会长大。
•
The holidays will be here before you know it.
不知不觉中，假期就会到来。