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
What did I do with the rings?
我把戒指放哪儿了？
I only had five dollars.
我只剩五美元。
We like it very much. It's great!
我们非常喜欢，太好了！