Cuprobond
(冷加工前的)镀铜, (钢丝拉拔前的)硫酸铜处理
🗣️ 情景例句
But some things are personal or private, and questions about them are not polite.
但是有些事是私人的，问这些方面的问题是不礼貌的。
Will you please pick up your clothes from the floor?
能请你把地板上的衣服捡起来吗？
Well done, everyone, and congratulations to the winners.
你们个个表现出色，我谨向获胜者表示祝贺。