Acetylacetone
乙酰丙酮, 戊间二酮
🗣️ 情景例句
May I see you in my office?
你可以到我的办公室来一下么？
The girl I love is much younger than me.
我爱上的女孩比我小多了。
but while the drum was being shaken,
但是，圆筒受到震动，