Polynonamethylene adipate
[化] 聚己二酸亚壬基酯
🧩 词语组成解析
己二酸
🗣️ 情景例句
We couldn't afford it.
我们当时不够钱。
Looking back, it seems like a very short five years living here and working together with you.
回顾一下，在这里和大家一起工作的五年看起来是那么短暂。
Mr. Smith is in charge of this class.
史密斯老师负责该班。