gnats

例句:

• I've always admired the strategy of winter gnats.
  来自THETIMES
• He decided that he might fire at all gnats.
  他决定索性把鸡毛蒜皮都摊出来.
  
• The air seemed to grow thick with fine white gnats.
  空气似乎由于许多白色的小虫子而变得浑浊不堪.
  
• Gnats and mosquitoes infested the field by the river.
  小昆虫和蚊子群集于河边的田野里.
  
• The mites inhabit the just area under the soil surface where fungus gnats pupate.
  来自BBC
• If you're in a big truck, they're around you like gnats.
  来自NEWYORKER