Polyacrylics
聚丙烯酸化物; 聚丙烯酸化物
🗣️ 情景例句
You're welcome anytime.
欢迎你随时来玩。
Besides the required courses, I'm taking an elective in the Lab Science.
除必修科目外，选修科目我选了实验科学。
Very excited, the party dug a hole two feel deep.
队员们异常激动，就地挖了一个两英尺深的坑，