Methacrylates
(methacrylate 的复数) n. 甲基丙烯酸酯；异丁烯酸甲酯
🗣️ 情景例句
Don't lose sleep over it.
别因为这事儿睡不着觉。
A good maxim is never out of season.
至理名言不会过时。
My grammar is improving, but I find idioms and useful expressions hard to learn.
我的语法在进步，但我发现习语和有用表达很难学。