Polyfluorocarbon
[化] 多氟烃; 多氟代烃
🗣️ 情景例句
You're talking about a lot of money.
你们谈的可是一大笔钱。
Happiness consists in contentment.
知足常乐。
I read about you in the newspaper and decided to come and hear you play.
我在报纸上看到了你的情况，于是决定来听你演奏。