block off

block offblock off1.关闭; 封闭; 封锁The police blocked off the street where the gunman was hiding.警察封锁了持枪歹徒躲藏的那条街。The gas pipe has been blocked off to prevent escapes.煤气管道已被关闭, 以防漏气。

block off1.阻挡,制止,堵塞,封锁,阻隔:to block off a street to traffic阻断街道交通2.封闭,关闭:to block off the gas pipe关闭天然气管道

见:block: block off
英语宝典
考试词汇表