Perfluorochemical
[机] 全氟化化合物
🗣️ 情景例句
Forgive me for being 20 minutes late for our date.
请原谅我迟到了二十分钟。
Such beginning, such ending.
有怎样的开始，就有怎样的结束。
Do you still have the cock year stamp?
你还有鸡年的邮票吗？