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
that will bring parents and teachers together once a week
让家长们及教师每星期一次
We hope they will improve the environment.
我们希望他们把环境改善得更好。
Sure! But why don't you come with me?
当然可以！但你为什么不同我一起去呢？