没头苍蝇méi tóu cāng ying常用成语 基本例句 sb…who does things aimlessly；headless fly—do things without a clear purpose；bustle around aimlessly比喻乱闯乱碰的人。繁体没頭蒼蠅近义无头苍蝇目击者记得这架单引擎飞机在坠地前像没头苍蝇一样上下翻飞。 Witnesses recall seeing the single engine plane weaving around before crashing to earth. yeeyan