He is cooped up in a cramped cell with ten other inmates.他和其他十个囚犯一同被关在一个狭窄的囚室中。

It isn't good for her to be cooped up all the time.把她一直关着不好。

How would you like to be cooped up in a cage like that?把你关在像那样的一个鸟笼里, 你会感觉如何？