Carbopol
聚羧乙烯; 聚羧乙烯
??? 情景例句
What did you learn at school today?
你今天在學校學了什么？
Think much, speak little, and write less.
勤思考，寡發言，少落筆。
Thanks for the party last Sunday. I enjoyed it very much.
感謝你上個星期天的聚會。我非常快樂。