lock in

关起来, 锁藏起来

例句与用法：

The two of them are locked in a titanic struggle for control of the company.

他们俩为争夺对公司的控制权打得不可开交。

At 9 pm the prisoners are locked in for the night.

晚9时把犯人锁进牢房过夜。

详细释义：

把……关在里面

Don't lock yourself in all the time.

别老是把你自己关在家里。