Polycoumarone
[化] 聚香豆酮; 聚氧杂茚
🗣️ 情景例句
Harry Bennett. Is this Susan?
Harry Bennett，是Susan吗？
Grasp the thistle firmly.
毅然处理困难局面。
How are you getting to the airport? Is anybody seeing you off?
你打算怎样去机场？有人送你吗？