Polydienes
(polydiene 的复数) 聚二烯
🗣️ 情景例句
Grandpa, when did Dad graduate from Michigan?
爷爷，爸爸是什么时候从Michigan毕业的？
It is an equal failing to trust everybody, and to trust nobody.
信任一切与不信任任何人，同样是弱点。
No, thanks. I can manage it myself.
不，谢谢。我可以自己提。