Paac
[医][=polyallyl acetate]聚醋酸烯丙酯
🗣️ 情景例句
When is check-out time?
什么时候必须结帐和离开宾馆？
Fortune is fickle.
天有不测风云，人有旦夕祸福。
They are too high. Be careful, Jim! It's dangerous.
它们太高了，小心，吉姆！那很危险。