Ethynes
[化] 炔烃
🗣️ 情景例句
why don't you introduce everybody to Susan?
何不将她们每一位介绍给 Susan？
A wise man thinks all that he says, a fool says all that he thinks.
智者思其所言，愚者言其所思。
I am always amazed when I hear people saying that sport creates goodwill between the nations,
当我听人们说体育运动可创造国家之间的友谊，