1. Please check in not later than 10:20 a.m.
   办理登机手续请不要迟于上午十点二十分。
2. He has just checked in at the hotel.
   他刚刚在旅馆办好住宿手续。
3. Wait a minute - I'll just check in my diary.
   等一下--我得查一下我的日记。
4. The epidemic was held in check by widespread vaccination.
   这种传染病靠广泛的预防注射已受到控制.
5. I'll have to check the entries in the ledger.
   我得核对一下总帐的项目.

　1个动词解释