Polynonamethylene adipamide
[化] 聚亚壬基己二酰胺; 聚己二酰壬二胺
🧩 词语组成解析
[化] 己二酰二胺
🗣️ 情景例句
How nice to meet you.
认识你真高兴。
The best of friends must part.
莫逆至交，终有一别。
Welcome back to school!
欢迎回校！