Polyacrylonitrile
n. [化]聚丙烯腈
🗣️ 情景例句
I have a customer for your first wedding dress.
我已经有了 的第一套结婚礼服的顾客。
Take care of the pence and the pound will take care of themselves.
金钱积少便成多。
It is fairly clear that sleeping period must have some function,
很清楚，睡眠必然具有某种作用。