Polyethylene imine
[化] 聚环乙亚胺; 聚氮杂环丙烷
🧩 词语组成解析
n. 聚乙烯\\n[化] 聚乙烯
n. [化]亚胺
🗣️ 情景例句
with the biggest accounting company in the country--
全国最大的会计公司--
They had a baby last month.
他们上个月有了一个婴儿。
By then, however, in many places the grass had already taken root.
然而到那时，很多地方的草已经生了根。