Polymethyl
methacrylate [化]聚甲基丙烯酸甲酯
??? 情景例句
He can really slam it down.
他可真能喝。
Where did you go yesterday?
你昨天去了哪里？
However, size and strength are not the only important things about this bridge.
然而，這座橋重要特點不僅是它的規模與強度。