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 had this part of the conversation
我们正谈到这儿
This year I'm in a co-ed dorm.
今年我住在男女生合住的宿舍。
both men were genuinely sorry that they had to leave.
这二位不得不离开那个荒岛时，还真的感到遗憾呢！