Olefin
n. 石蜡, 烯烃\\n[化] 烯烃
🗣️ 情景例句
You will only have to pay another ten cents and a nickle for your child.
你只需另外再付10美分，而你的孩子只要再付5美分。
Blind men can judge no colours.
不宜问道于盲。
What happened?
发生什么事了？