Pmma
[化] 聚甲基丙烯酸甲酯
🗣️ 情景例句
If my GPA isn't high enough I can't play any sports.
如果我的平均学分不够高，我就不能再参加体育活动了。
You cannot flay the same ox twice.
一头牛不能剥两次皮。
Come on, you can do that.
来吧，你能做到的。