Levulinate
乙酰丙酸
🗣️ 情景例句
before Michelle and her friends arrived.
在Michelle和她的朋友们来之前。
To learn obeying is the fundamental art of governing.
学会顺从是管理的基本艺术。
I think I failed the French paper.
我想我的法语及不了格，我能回答