Copperiioxide
[化] 氧化铜
🗣️ 情景例句
I don't see what you are getting at.
我不明白你究竟是什么意思。
Yes, he speaks English perfectly.
是,他能流利地说英语。
He asked if Mr.Gilbert's operation had been successful and the doctor told him that it had been.
他问吉尔伯特先生的手术中否成功，医生告诉他手术很成功。