cordon off
phrasal verbcordon something off
- to stop people from getting into an area by surrounding it with police, soldiers, etc.
（由警察、士兵等）包围，警戒，封锁 - Police cordoned off the area until the bomb was made safe.
警方封锁了这个地区直到炸弹被安全拆除为止。
- Police cordoned off the area until the bomb was made safe.