Polyacrylonitrile
n. [化]聚丙烯腈
🗣️ 情景例句
The organization serves major companies in this city.
这个组织为本市各大公司服务。
Old bees yield no honey.
老蜂不酿蜜。
With the hand held high in the air,
把手高高举在空中握住绳子，