Epimer
n. [化]差向(立体)异构体,差位(立体) 异构体
🗣️ 情景例句
the kids in the ward
住院的孩子们
The proud man felt humbled by Karl's kindness.
那个傲慢的男人为卡尔的和蔼亲切而自惭形愧。
I went on walking, bending down because the roof of the cave was not very high.
因为洞顶不是很高，我继续弯着腰往前走。