a. not open
n. 关闭vt. 关上, 闭起, 幽禁, 合拢, 轧住vi. 关上, 停止营业
1. Please shut the door when you leave.
请在你离开时关上门。
2. I always shut my window at night for safety.
我晚上总是关上窗户以确保安全。
3. Can you shut off the lights before you go to bed?
你能在睡觉前关掉灯吗？