Etox
环氧乙烷
🗣️ 情景例句
The advanced exercise class is not so easy, huh?
高级健身班不是那么容易吧， 对不对？
I've bee invited over to a friend's, and you?
有个朋友请我去作客，你呢？
My name is Ma Lili.
我叫马莉莉。