Polymethylmethacrylate
聚甲基丙烯酸甲酯, 有机玻璃
🗣️ 情景例句
That's load off my mind.
这一来我心里轻松了。
Let your yea be yea and your nay be nay.
是就是，非就非。
if it is really attended by the illumination of another field of interest,
而且的确受到别的领域的情趣的启迪，