Pfcs
abbr. 全氟化碳；全氟代烃类
🗣️ 情景例句
He's a real Stewart.
他是个十足的Stewart家的人。
Well, it's too bad that you have to go.
哦，真遗憾，你一定要走。
A temporary rudder was made on board from spare planks and it was fitted with great difficulty.
船员用备用的木板在船上赶制了一只应急用的舵，并克服重重困难将舵安装就位，