1.
a thousand constables cordoned off the riot area.
1000名警察组成的警戒线把发生骚乱的地区封锁了起来。
2.
cordon of police
(警察站成一线形成的)警戒线
3.
The thin cordon of police could do nothing to hold back the crowd.
警察围成的警戒线力量单薄，挡不住人群。
4.
The demonstrators Broke through the cordon of the police.
示威者冲破了警察的警戒线。
5.
He shot his way through the police cordon.
他开枪射击突破警察的警戒线。
6.
a sealed off pipe; the sealed off airport was surrounded by a cordon of police.
密封管；封锁的机场被警察站成一线所形成的警戒线围了起来。
7.
The police have cordoned off the town centre .
警察用警戒线围住市中心。
8.
watchful waiting
待机, 观察, 警戒(as)
9.
A policeman who patrols or polices an assigned area.
巡警在指定地区巡逻或担任警戒的警察
10.
The police cordon is unable to hold back the crowd .
警方的警戒线阻挡不住人群。
11.
The police cordon was unable to hold back the crowd.
警方的警戒线阻挡不住人群.
12.
escape through the cordon
逃过 [突破] 警戒线
13.
The police throughout the district were alerted as it was known that the prisoner had escaped.
全地区的警察一得知囚犯已逃跑，立刻警戒起来。
14.
Immediately a cordon of five thousand police, augmented by more than three thousand volunteers, was thrown about the Black Belt.
立刻在黑人地带设置了警戒圈，由五千名警察外加三千多名志愿人员组成。
15.
inform or spy (for the police).
告诉警察或当警察的线人。
16.
The police searched him for the stolen ring.
警察搜了他的身找寻失窃的戒指。
17.
serve as pickets or post pickets.
担任纠察队员，担当警戒的任务。
18.
Cora: There's a police cordon around our block so I can't get into my apartment. What's going on?
科拉：警察在我们那幢楼宇周围布下警戒线，我无法进入自己的住房。发生了甚麽事？