Epimer
n. [化]差向(立体)异构体,差位(立体) 异构体
🗣️ 情景例句
He is now involved in stocks.
他现在热衷于股票。
Anything else you want to bring up for discussion.
你还有什么问题要提出来供双方讨论的吗？
They insisted on staying rather than going.
他们坚持留下来，而不愿意走