Epimer
n. [化]差向(立体)异构体,差位(立体) 异构体
🗣️ 情景例句
Yes. I wonder if you can send up some of boiling water for me.
是的，你可以送点开水上来吗？
That's terrible!
真是太惨了！
In the morning, Mr.Sawyer goes to work and the children go to school.Their father takes them to school every day.
早上，索耶先生去上班，孩子们去上学。父亲每天送孩子们去上学。