Poly(acrylic acid)
[化] 聚丙烯酸
🗣️ 情景例句
I'm afraid i've brought you a lot of trouble.
恐怕我给你带来了不少麻烦。
Quite so.
的确是这样。
A game that is very popular with these young swimmers is the underwater tricycle race.
这些幼小的游泳运动员非常喜爱的一种游戏是水下三轮车比赛。