非常感謝老貓de回複。 問過在實驗室裏專門養果蠅(very tiny one, usually been seen during the summer in the kitchen, if the garbage not been taken good care of) 的朋友,和她們實驗室研究蒼蠅的的人討論過,spoiled food不可能在24 hour裏長出幼蟲。