Epimer
n. [化]差向(立体)异构体,差位(立体) 异构体
🗣️ 情景例句
since this is so easy ....
既然那么简单……
I will be hospitalied in November.
我将在十一月份住院。
I think we must buy some meat for supper.
我想我必须买一些晚饭吃的肉。