Polycoumarone
[化] 聚香豆酮; 聚氧杂茚
🗣️ 情景例句
Number 1 train to Van Cortlandt Park. Thank you.
一路车到Van Cortlandt公园。谢谢。
My son wants to be a policeman when he grows up.
当他长大时，我的儿子想要成为一个警察。
It's missing head happened to be among remains of the fifth century B.C.
而她那身异处的脑袋却碰巧是在公元前5世纪的文物中找到的。