riddle [ 'ridliŋ ]

• n.
  • a difficult problem

    同义词： conundrum enigma brain-teaser

  • a coarse sieve (as for gravel)
• v.
  • pierce with many holes

    "The bullets riddled his body"

  • set a difficult problem or riddle

    "riddle me a riddle"

  • separate with a riddle, as grain from chaff

    同义词： screen

  • spread or diffuse through

    "His campaign was riddled with accusations and personal attacks"

    同义词： permeate pervade penetrate interpenetrate diffuse imbue

  • speak in riddles
  • explain a riddle

以上来源于: WordNet