Mercaptans
(mercaptan 的复数) n.[化]硫醇
🗣️ 情景例句
How about meeting each other half-way with the price gap?
我们折衷一下如何？
Would you please hold the door open for me?
请您为我打开门？
It is fairly clear that sleeping period must have some function,
很清楚，睡眠必然具有某种作用。