Acetonyl-acetone
[建] 丙酮基丙酮, 己二酮
?? 詞語組成解析
丙酮基, 乙酰甲基
n. 丙酮\\n[化] 丙酮
??? 情景例句
I see. By the way, how many people are working in your factory now?
哦，我知道了。順便問一下，現在貴廠有多少在職職工？
It's not too heavy,but I don't know the exact weight.
它不是太重的，但是我不知道準確的重量。
She was in the city to visit her daughter.
她住在農村。