Polymethylmethacrylate
聚甲基丙烯酸甲酯, 有机玻璃
🗣️ 情景例句
She's still giving the toughest English history exams
她仍用最艰深的英国史试题考学生
That isn't the way the event happened.
这不是事情的真相！
I'm a director. I direct plays.
我是导演。我导演戏剧。