Poly(tetrafluoroethylene)
[化] 聚四氟乙烯
🗣️ 情景例句
How do you get to work everyday?
你每天怎样去上班？
Turn your tongue seven times before speaking.
话到嘴边留三分。
I would like you to change this blouse, or else give me my money back.
我想要你换掉这件衬衣，要不就把钱退给我。