Perfluamine
全氟三丙烷
🗣️ 情景例句
It's too noisy for some older people like Nat.
它对于像Nat这样的老人来说太吵了。
He must have three more weeks of rest before he is released.
他在出院以前，还需要三周时间的静养。
People enjoyed the stamps very much.
人们非常喜爱这些邮票。