Polymethacrylonitrile
[化] 聚甲基丙烯腈
🗣️ 情景例句
Is this your very first advanced aerobics class?
这是你第一次上有氧运动高级班吗？
I was little ill at ease.
我有点不自在。
My name is Chen Sung-lim.
我叫陈松林。