pocketknife [ˈpɑ:kɪtnaɪf]

例句:

• Steven killed the bird with his pocketknife.
  史蒂文用随身带的小刀杀死了这只小鸟.
  
• I got a really good pocketknife for $ 10.
  我花十美元买了一把非常好的折叠刀.
  
• Now, use your pocketknife to touch the mica and see what will happen.
  现在你用小刀去触及岩石中的云母,看看会产生什么现象.
  
• Btw, the Swiss invented that handy pocketknife, made fine watches, and has the largest scientific machine.
  来自SA
• Using a pocketknife, Steele removed the tape from the face of a corpse, so that it could be properly photographed.
  来自NEWYORKER
• This time, he selected a piece of charcoal more carefully and, with his pocketknife, scraped its end to a semblance of sharpness.
  来自NEWYORKER