Epimer
n. [化]差向(立体)异构体,差位(立体) 异构体
🗣️ 情景例句
or we won't be finished by dinnertime.
要不然， 晚餐时间到了我们还做不完。
The weather is nice today.
今天天气很好。
They intend to bring the men up in a special capsule.
他们准备用一种特制的容器把这6个人救上来。