Dimetone
雙甲酮, 二甲基環已二酮
??? 情景例句
I've been busy all day.
我今天一整天都非常忙。
Are you ready for your dessert now?
你現在準備好甜菜了嗎？
This is a good example of his poetry.
這是他詩作的一個好例子。