Caoutch(ouc)ene
[化] 生胶干馏渣(生胶干馏所得的高沸点产物)
🗣️ 情景例句
I should have quit while I was ahead.
我应该见好就收。
No, it isn't. Yes, it is.
不，它不是。 是的，它是。
Yes, I have.I think that.I've hurt my back.
是啊，摔伤了。我想我把背摔坏了。