Epdm
[化] 三元乙丙橡胶; 乙丙三元橡胶
🗣️ 情景例句
Birds are good pets, they can wake you up by singing in the morning.
鸟是很好的宠物，它们早上的歌声可以将你从梦中唤醒。
What's the matter with you?
你怎么了？
Yes.
明白了。