Poly(acrylic acid)
[化] 聚丙烯酸
🗣️ 情景例句
Believe me, Max is fine.
相信我， Max很好。
No,I don't .
不，我没有。
It must have been about two in the morning when I returned home.
我回到家时，肯定已是凌晨两点左右了。