Polymine
聚乙烯亚胺; 聚乙烯亚胺
🗣️ 情景例句
That's quite a difference from the directions that Pete sent me.
这和Pete寄给我的路线指示完全不同。
I beg your pardon.
请原谅。
Her tooth ached all night.
她牙疼了一整夜。