Polydecamethylene adipamide
[化] 聚亚己基癸二酰胺; 聚己二酰癸二胺
🧩 词语组成解析
[化] 己二酰二胺
🗣️ 情景例句
Hi! What happened?
嗨 ！怎么回事？
I don't know for sure.
我不能肯定。
No, you're doing fine.
不，你发音很好。