Polymethacrylate
聚甲基丙烯酸酯
🗣️ 情景例句
I've been meaning to ask you
我一直想问
A new bicycle is out of the question - we can't afford it.
买新自行车的事谈不上 —— 我们买不起。
Can she type this letter for me?Ask her please.
她能为我打一下这封信吗？请问她。