Pfoa
[医][=Perfluorooctanoic acid]全氟辛酸
🗣️ 情景例句
Freeze!
别动！
Better the foot slip than the tongue trip.
宁可滑跤，不可失言。
He fills each of the stockings with Christmas presents.
他给每一只长统袜装上圣诞礼物。