Polymethacrylate
聚甲基丙烯酸酯
🗣️ 情景例句
I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.
我星期五会给你打电话，在你方便的时间重新安装我们的午餐约会。
The speaker kept wandering off.
演讲的那个人老是走题。
You're working hard, George.
你干得真辛苦，乔治。