Pmma
[化] 聚甲基丙烯酸甲酯
🗣️ 情景例句
He's the Dean of Admissions for the University of Michigan.
他是Michigan大学的新生注册主任。
If she could help you, she would help you.
如果她能帮你，她一定会的。[虚拟语气]
Two ice cream please.
请拿两份冰淇淋。