Polymethacrylate
聚甲基丙烯酸酯
🗣️ 情景例句
Oh, fine, fine. Be here a few minutes early.
啊， 好， 好。请早几分钟到这。
May I ask you where you are from?
我能问你从哪里来吗？
When you have found a building in which to start your school.
你找到开办学校的楼房后