Copperiioxide
[化] 氧化铜
🗣️ 情景例句
They don't have room service at Old Country Inn. Old Country Inn
没有房间服务部。
I tried to call Mr. Cooper,but the line was busy.
我试着呼叫库珀先生，但是线老是忙。
Give me that hammer please, Dan.
请把那把锤子拿给我。丹。