| 释义 |
seal sth offphrasal verb(of the police or army) to prevent people from entering a particular area（警察或军队）封锁，封闭◆police sealed off the building following a security alert.安全警报发出后，警察封闭了这座大楼。 seal sth off to stop any person or thing from entering or leaving an area or building 封锁；封闭: ◇the building was sealed off by the police. 警方封锁了大厦。 |