Poly(acrylic acid)
[化] 聚丙烯酸
🗣️ 情景例句
Don't be too sure.
别那么肯定。
The proud man felt humbled by Karl's kindness.
那个傲慢的男人为卡尔的和蔼亲切而自惭形愧。
he had included a large number of funny stories in the speech and, of course, it was a great success.
他的祝词里面加进了大量逗人的故事，自然大获成功。