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
That's right. What should we do when we find a shortage in the shipment?
这很对。要是我们发现货物短缺，该怎么办？
From across the room, David cast a glance at his brother.
隔着房间，大卫瞥了一下弟弟。
For him, this will be an entirely new hobby.
对于他来说，这将是一种全新的爱好。