| 词汇 | block sth off |
| 释义 | block sth offphrasal verbto close a road or an opening by placing a barrier at one end or in front of it（用路障）封锁，堵住◆the main roads out of the city have been blocked off.城外的各主要道路已经封锁。 block sth off to separate one area from another with sth solid 用障碍物把某地区隔开；封锁: ◇this section of the motorway has been blocked off by the police. 警方将这段高速公路封锁了。 |
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