Mercaptans
(mercaptan 的复数) n.[化]硫醇
🗣️ 情景例句
I was deeply impressed by his speech.
他的演讲给我留下深刻的印象。
Sorry, sir. But it's our graduation day.
对不起，不过，今天是毕业的日子嘛。
The answer is zero.
白忙了。