Copperiioxide
[化] 氧化铜
🗣️ 情景例句
No harm done.
没什么。
I can't do it by myself.
我一个人哪做得完啊！
Lights were blazing and men were running here and there: they had just discovered that a prisoner had escaped.
他们刚刚发现有一个俘虏跑了。