Polyethylene polyamine
[化] 多乙烯多胺
🧩 词语组成解析
n. 聚乙烯\\n[化] 聚乙烯
n. [化]聚胺,多胺
🗣️ 情景例句
I still don't understand what you mean.
我还是弄不懂你是什么意思。
Catch the bear before you sell his skin.
大事未成时，莫开庆功宴。
Yes, I look young,too!
我看上去也很年轻。