Polycoumarone
[化] 聚香豆酮; 聚氧杂茚
🗣️ 情景例句
I don't see why she's so against the idea.
我不明白她为何如此反对这个计划。
I really appreciate your help.
我非常感谢你的帮助。
Is there anything good on?
有什么好节目上演吗？