Polycoumarone
[化] 聚香豆酮; 聚氧杂茚
🗣️ 情景例句
He's coming over to talk about it.
他就是要来谈这个问题。
A man can not spin and reel at the same time.
一心不能二用。
We have lunch in the middle of the day.
我们中午吃饭。