Epimer
n. [化]差向(立体)异构体,差位(立体) 异构体
🗣️ 情景例句
What guarantee do I have that it won't break down easily?
有什么保障它不会轻易出故障？
Though the fox run,the chicken hath wings.
狐狸虽会跑，小鸡有翅膀。
I think I'm in a difficult position.
我想我现在的处境困难。