Polyfluorohydrocarbon
[化] 多氟烃; 多氟代烃
🗣️ 情景例句
Where there's a will, there's a way.
有志者事竟成。
I'll probably wake up early and get up at 6:30.
我可能早醒并在6:30起床。
It's my watch.
是我的手表。