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
You want a hint?
需要提示吗？
I can't move.
我走不动了。
The English and Maths papers weren't easy enough for me.
英语和数学试题对我来说不很容易。