Pmma
[化] 聚甲基丙烯酸甲酯
🗣️ 情景例句
What's wrong?
什么病
A good idea came into my mind.
我想到一个好主意。
She was taking the things out of the basket when she dropped a bag of sweets.
她把东西从篮子里拿出来，这时，一袋糖从她手里掉地了。