Epdm
[化] 三元乙丙橡胶; 乙丙三元橡胶
🗣️ 情景例句
I enjoyed reading these books very much.
我很喜欢读这些书。
Are you sure this is where we are to meet them?
你确定要在这个地方和他们碰头吗？
Good news, I hope.
希望是好消息。