cordoning

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。

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。