cordon

1. Scotland yard said a cordon was used because missiles were being thrown at officers .

苏格兰场说使用警戒线是因为一直有投掷物扔向警察。

2. Government troops , tanks and armoured cars are enforcing a forbidding cordon around the desert circuit .

政府的军队、坦克和装甲车正围绕着沙漠赛道组织警戒线。

3. Armed police moved the onlookers beyond a cordon as paramilitary troops moved in on the building .

部队向建筑物靠近，武警则要求旁观者移到警戒线外。

4. The violent attempts to break through the police cordon were led by male youths , many from anarchist groups but many ordinary russians were refusing to leave the site of the protest too .

企图强行突破警方警戒线的行动是由一些男青年领头的，其中许多人从属于无政府主义团体，但许多普通的俄罗斯百姓也拒绝离开抗议地点。

5. It has used the pretext of an alleged terrorist threat to impose a restrictive security cordon on the city and curtail visas even for harmless businessmen .

它以恐怖威胁为借口在北京设立限制性安全警戒线，甚至消减了几乎无任何威胁的商人的签证。

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