Polyfluorohydrocarbon
[化] 多氟烃; 多氟代烃
🗣️ 情景例句
Why don't you want to play?
你为什么不玩？
Self-trust is the first secret of success.
自信是成功的首要秘诀。
I don't have any small notes on me.
我身边没有小钞票。