Epimer
n. [化]差向(立体)异构体,差位(立体) 异构体
🗣️ 情景例句
Forgive me, I didn't mean to offend you.
请原谅， 我不是有意惹你生气。
The product gives you an edge over your competitors,I guess.
我认为你们的产品可以使你们胜过竞争对手。
my aunt unexpectedly returned one afternoon with a party of guests and instructed Bessie to prepare dinner.
一天下午，她出其不意地回来了，带来一大批客人，吩咐贝西准备晚饭。