netherworld [ˈneðərwɜ:rld]

例句:

• Waits sang about the boozy netherworld of urban America.
  韦茨歌唱美国都市纵酒豪饮的下层世界。
  
• He's since become a deerstalker of the Paris netherworld, and he looks it with his stringy graying hair and Buffalo Bill beard.
  来自WSJ
• Send off a query and say you're looking for a Virgil to lead you through this netherworld.
  来自WSJ
• I first went online and into the netherworld of chatrooms out of curiosity, and merely to pass the occasional empty evening.
  来自THETIMES