Pfoa
[医][=Perfluorooctanoic acid]全氟辛酸
🗣️ 情景例句
It always takes time to get used to a new place.
适应一个新地方总是需要一段时间。
I get up at 6 o'clock every day.
我每天在6点钟起床。
What happened?
发生什么事了？