Polybutadienes
(polybutadiene 的复数) [机] 聚丁二烯
🗣️ 情景例句
He's an extremist, and quite fanatical.
他是个极端分子，非常狂热。
Well, I'm sorry you have to leave so early.
哦，很遗憾，你非得这么早走不可。
(Bruce rings up his father on the telephone.)
（布鲁斯给他父亲打电话。）