before you know it
中文釋義
不知不覺中，很快。
Something will happen sooner than you expect.
常用搭配
- gone before you know it一轉眼
- over before you know it轉瞬即逝
- grown before you know it眨眼就長大
例句
- The kids grow up before you know it.孩子轉眼就長大了。
- The quarter will be over before you know it.一個季度一晃就過去了。