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Police cordoned off the area until the bomb was defused .

警方封锁了这个地区直到炸弹被拆除为止。

Late monday , many streets were cordoned off and largely deserted .

周一晚些时候，许多街道用警戒线隔离开来，路人稀少。

Anguished relatives demanded to know why the police had not cordoned the area off .

悲痛的亲人很想知道，为什么警察没有拉起警戒线，把这个区域隔离起来。

Officers cordoned off streets around the building .

警察封锁了商场周围的街道。

Police cordoned off the street for investigation shortly after the accident .

警方已经封锁了事故发生后不久，街道进行调查。