Polyfluorocarbon
[化] 多氟烃; 多氟代烃
🗣️ 情景例句
Fine, Mr. Wrigley.
好的，威格雷先生。
We can't make a decision without knowing the facts.
我们不能不知道事实，就作决定。
I lent a pan to you two weeks ago. I've come to get it back again.
两个星期以前我借了一只锅给你。我来拿我的锅。