Polyamine
n. [化]聚胺,多胺
🔁 扩展释义
【化】 多元胺【医】 聚胺
🗣️ 情景例句
and the company in Los Angeles
而在Los Angeles
All our work was in vain.
我们白干了一场。
I'm sorry to hear that.
真遗憾。