Polyethyleneimine
聚乙烯亚胺
🗣️ 情景例句
Well, thanks.
噢 ，谢了。
Like mother,like daughter.
有其母，必有其女。
One Monday, there were fewer people in the shop than usual when the woman came in,
有一个星期一，当这位妇女走进这家商场时，里面的人比往常少，