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
Your work will get by, but try to improve it.
你的工作还过得去，不过还得努力改进一下。
He that once deceives is ever suspected.
骗人一次，受疑一世。
' The manager was sympathetic, but he could do nothing.
”经理深表同情，但却无能为力。