n.警戒线；哨兵线；饰带
v.围起警戒线
Demonstrators broke through the police cordon. 示威群众突破了警戒线。
There is a tight security cordon around the area. 这一地区周围设有严密的安全警戒圈。
The police cordon was unable to hold back the crowd. 警方的警戒线阻挡不住人群。
用作动词 (v.)Police cordoned off the area until the bomb was defused. 警方封锁了这个区域直至拆除炸弹的引信为止。
