Epm
[化] 二元乙丙橡胶; 乙丙二元橡胶
🗣️ 情景例句
I know that.
我知道。
Don't forget to help him.
不要忘记帮助他。
It had broken down the previous summer, and though I promised to repair it, I had never got round to it.
那台割草机去年夏天就坏了，尽管我答应修，但一直没抽出时间，