Polymine
聚乙烯亚胺; 聚乙烯亚胺
🗣️ 情景例句
I beg you pardon?
对不起，你说什么？
Every time the sheep bleats it loses a mouthful.
羊每叫一次，就少吃一口。
It has four Rolls-Royce Merlin engines, but the group will need to have only three of them rebuilt.
该飞机装装配有4台罗尔斯-罗伊斯的默林发动机，但是他们只需要修复其中的3台。