Polymethyl
methacrylate [化]聚甲基丙烯酸甲酯
🗣️ 情景例句
I am unfamiliar with law.
我对法律不熟悉。
Every country has its customs.
乡有乡俗。
When one seriously studies the social orders that have had the opportunity to develop autonomously,
当一个人认真地研究自发形成的社会秩序时，