Polycoumarone
[化] 聚香豆酮; 聚氧杂茚
🗣️ 情景例句
If there's anything you need, please call me.
假如你们需要什么， 请打电话给我。
I enjoyed meeting and talking to you, and sharing the time together.
见到了你们大家，我们一起交谈共度时光。
A barking dog doesn't bite!
吠犬不咬人。