seal off
phrasal verbseal something off
- (of the police, army) to prevent people from entering a particular area
封锁；封闭 - Troops sealed off the site following a bomb alert.
接到炸弹警报后，部队封锁了该地点。 - The road will remain sealed off until the police have completed their investigations.
在警方完成调查之前，道路将保持封锁。
Extra Examples- Police sealed off the area.
警察封锁了该地区。 - The nuclear plant would be effectively sealed off from the world.
该核电厂将与外界完全隔离开。
- Troops sealed off the site following a bomb alert.