Polymine
聚乙烯亚胺; 聚乙烯亚胺
🗣️ 情景例句
We are.
我们是。
You cannot sell the cow and sup the milk.
你不可能出售乳牛，同时又要喝牛奶。
That would be a waste of money. What's your opinion?
那就浪费钱了。你的意见呢？