Ethynylene
乙炔撑, 次乙炔基
🔁 扩展释义
【化】 亚乙炔基
🗣️ 情景例句
Well, then why are you so sad?
那你为什么如此难过？
This is a TV set.
这是一台电视机。
I admire him for his success in business.
我佩服他事业有成。