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cordon [英] [ˈkɔ:dən] [美] [ˈkɔrdn] [名] 警戒线;警戒圈 [动] 用警戒线围住;封锁 词频排名 18907/55435 学习人数 3820 难度等级 9/10 认知比例 18.80% 例句 They waited within a cordon surrounded by security personnel. 他们站在警戒线之内,警戒线之外是安保人员。 to cordon the office building 用警戒线围住办公楼 A cordon was used because missiles were being thrown at officers. 使用警戒线是因为一直有投掷物扔向警察。 助记 联想 GRE 警戒线 围成防线
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