Epimerization
差向[立体]异构(作用)
🗣️ 情景例句
Oh, I'd like you to meet my sister-in-law Marilyn.
噢 我来向你介绍我嫂子Marilyn。
I will go to the theater.
我将去戏院。
It was the first joy I had known for years.
我豁然开朗了。这是我多年来第一次感到高兴的事了。