Epimer
n. [化]差向(立体)异构体,差位(立体) 异构体
🗣️ 情景例句
And you are now making news.
而你现在就是在创造新闻。
It's a shame I haven't seen more of you these recent years.
真遗憾，最近几年我未能见到你。
Paw prints were seen in a number of places and puma fur was found clinging to bushes.
在许多地方看见爪印，灌木丛中发现了粘在上面的美洲狮毛。