Poly(hexamethylene adipamide)
[化] 聚己二酰己二胺; 尼龙-66
🗣️ 情景例句
I'm concerned.
我很担心。
This week he took his first vacation from work in five years.
五年来，他本周破例第一次休假。
The assistant who served her did not like the way she was dressed.
接待她的售货员不喜欢她的那副打扮，