Epimer
n. [化]差向(立体)异构体,差位(立体) 异构体
🗣️ 情景例句
Thank you all the same.
不管怎样都要谢谢你。
I took charge of the group.
我管理过那批人。
He hitchhiked to Dover and, towards evening, went into a boat to find somewhere to sleep.
他搭便车到了多佛，天快黑时钻进了一条船，想找个地方睡觉。