to seal off
01
密封, 防漏
make tight; secure against leakage
02
封锁, 封闭
to close a place or area to prevent people from entering or leaving
例子
The police had to seal off the area around the crime scene.
警方不得不封锁犯罪现场周围的区域。
The emergency services sealed off the area to contain the outbreak.
紧急服务封锁了该地区以控制疫情。
03
封锁, 密封
to block or stop the passage of something
