Copperiioxide
[化] 氧化铜
🗣️ 情景例句
Yes.
是的。
One misfortune comes on the neck of another.
祸不单行。
When you have finished your experiment, please tidy the lab and put everything back in the cupboards.
做完实验后，请你们把实验室整理好，并把所有的东西放回器皿柜。