Pfcs
abbr. 全氟化碳；全氟代烃类
🗣️ 情景例句
I'm sorry. I missed that.
对不起，我没听清。
All's fair in love and war.
爱情和战争是不择手段的。
I like reading English books, but they're sometimes rather hard.
我喜欢看英语书，但有时候英语书相当难读。