单词：sealing off
[电] 封闭
sealing off的用法和样例：
例句
- It did not seem to occur to the police to seal off the entrance or order nobody to leave.警察似乎没有想到应封锁各入口处或命令任何人不得离开。
- Police sealed off all the exits from the building.警方把建筑物的所有出口都封锁住了。