Countersign
n. 口令, 暗号, 副署\\nvt. 副署, 确认
✅ 同义词
🔴 反义词
📖 牛津释义
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.
🗣️ 情景例句
Oh, come on now.
噢， 别这样了。
Rowing builds up arm muscles.
划船能够锻炼臂力。
I was very tired when I arrived home. I'd been working hard all day.
我到家时非常累。我一整天都在玩命地干！