Epimerization
差向[立体]异构(作用)
🗣️ 情景例句
I don't think I have a mathemationcal brain.
我想我没有数学头脑。
I'm going home.
我正要回家。
Han Meimei, please look after the twins today.
韩梅梅，今天请照顾两姐妹。