unadulterated [ˌʌnəˈdʌltəˌretɪd]

例句:

• Organic food is unadulterated food produced without artificial chemicals or pesticides.
  有机食品是未使用人工化学制剂和杀虫剂的纯净食品。
  
• It was pure, unadulterated hell.
  那里简直就是个不折不扣的地狱。
  
• For me, the holiday was sheer unadulterated pleasure.
  对我来说，这个假期是百分之百的赏心乐事。
  
• The unadulterated science produces its own sense of wonder.
  来自SA
• But for unadulterated bass-line emancipation, Free Bass is unbeatable.
  来自BBC
• It's unadulterated, unlike margarines or spreads like that.
  来自THETIMES