| 单词 | countersign |
| 释义 | countersign v[Tn] sign (a document, etc already signed by another person 副署; 会签) a cheque countersigned on the back 背书支票. countersign n secret word which must be spoken to a guard, etc before one is allowed to pass; password 回令（回应警卫人员等的暗语以便通行） give the countersign 应答回令. |
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