Epimerization
差向[立体]异构(作用)
🗣️ 情景例句
Did you know that the Empire State Building is short, when compared with many of the skyscrapers today?
你知道吗？帝国大厦如果和召集的许多摩天大厦相比其实并不高。
Ouch, that hurts!
哎呦，好痛呀！
I'll wait until I hear from you.
那么我就等你消息，