Pfoa
[医][=Perfluorooctanoic acid]全氟辛酸
🗣️ 情景例句
As a matter of fact... I am hungry.
老实说……我饿了。
The German quotation is lower than yours.
德国报价比你们的低。
How do you do? I'm sorry. I know only a little English.
你好！很遗憾，我只懂一点英语。