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
At six o'clock this evening.
今晚六点。
It seems he's interested.
看起来他好像很有趣。
I'm here! said Jim. And so is Polly!
“我在这儿！”吉姆说，“波利也在这儿！”