Polyacrylonitrile
n. [化]聚丙烯腈
🗣️ 情景例句
Right this way, Mr. and Mrs. Stewart.
走这边， Stewart先生和太太。
That's fine.
好得很。
it would take about 700 years for half of us to die,
那么我们当中的一半人过700年才会死去，