Epimerization
差向[立体]异构(作用)
🗣️ 情景例句
It's still raining. I want to play tennis.
仍然在下雨。我想打网球。
I refuse to believe it!
我不相信那回事！
She sat near the window and asked questions about everything she saw.
她靠车窗坐着，对她所看到的一切都要问个明白。