Polyfluorocarbon
[化] 多氟烃; 多氟代烃
🗣️ 情景例句
What about her new friends?
那她的新朋友呢？
The love of money is the root of all evil.
爱财是万恶之源。
Dad, this is Li Lei. Li Lei, this is my father.
爸爸，这是李磊，李磊，这是我爸爸。