Copperoxide
[化] 氧化铜
🗣️ 情景例句
I'm sure you are right.
当然你是对的。
All work and no play make Jack a dull boy.
尽量学，尽情玩。
Pardon? Would you please say that again more slowly?
对不起，请你慢点儿再说一遍好吗？