Polyacrylonitrile
n. [化]聚丙烯腈
🗣️ 情景例句
He had blond hair.
他原来是金色头发 。
How much flour did you want to use?
你要用多少面粉？
Then he quietly goes into their bedrooms, and fills their stockings with small presents.
然后他悄悄地走进他们的卧室，给他们的长统袜装上小礼物。