Polyfluorocarbon
[化] 多氟烃; 多氟代烃
🗣️ 情景例句
But this should be your decision.
但这必须由你做决定。
All is fish that comes to his net.
到了网中都是鱼；只要到手全都要。
After taking off, we were flying low over the city and slowly gaining height,
起飞之后，我们在城市上空低低地飞行，然后慢慢爬高。