[ 复数 cordons 第三人称单数 cordons 现在分词 cordoning 过去式 cordoned 过去分词 cordoned ]
N-COUNT A cordon is a line or ring of police, soldiers, or vehicles preventing people from entering or leaving an area. 警戒线
Police formed a cordon between the two crowds.
警察在两群人之间设置了一条警戒线。
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