Epimer
n. [化]差向(立体)异构体,差位(立体) 异构体
🗣️ 情景例句
I am Lu Ming. I come here to welcome you.
我是陆明，我是来接你的。
I'd like to explain what makes this factory special.
我要向你说明本工厂的特性。
The teacher tested us in English.
老师用英文考我们。