Epdm
[化] 三元乙丙橡胶; 乙丙三元橡胶
🗣️ 情景例句
Two weeks. I said I could do it in two weeks, and I did it.
两周。我说过我两周就能完成， 现在我做到了。
What has the captain ordered us to do?
船长命令我们做那些事？
The eraser goes from one student to another first one way, then another.
橡皮擦从一个学生传给另一个学生－先从这个方向传过去，然后返回来。