Polydienes
(polydiene 的复数) 聚二烯
🗣️ 情景例句
When trouble comes your neighbors are the ones who will be there.
邻居在你有困难的时候会帮助你。
I wish I had half the money he does.
但愿我有他一半的钱。
I've lost my ruler. Have you seen it anywhere?
我的尺子丢了。你在哪看见了吗？