mayfly [ˈmeˌflaɪ]

例句:

• Mayfly nymphs may spend up to three years underwater, breathing through feathery gills.
  来自BBC
• In May 1911 the Mayfly was found to lack sufficient lift to get airborne.
  一九一一年五月,发现“蜉蝣号”飞艇的升力不足.
  
• Mayfly larvae live in water, becoming an adult prior to undergo a'sub - adult stage. "
  蜉蝣目昆虫所特有的变态类型.蜉蝣幼期生活于水中, 变为成虫前要经过一个 “ 亚成虫期 ”.
  
• The mayfly is unique among insects in that it emerges as an immature form, perfectly equipped with wings but incapable of mating.
  来自BBC
• Like the Mayfly that soars in the sky, for its one brilliant day in the warm spring Sunshine.
  来自SA