Epimerization
差向[立体]异构(作用)
🗣️ 情景例句
I've really got nothing to complain of.
我确实没什么好抱怨的。
He devoted himself completely to his work.
他完全投身于工作。
Beijing will be rainy. The temperature will be 2 to 9.
北京有雨。气温2C~9C。