intractable [ɪnˈtræktəbəl]

例句:

• Folks less intractable and testy than such prejudiced disputants.
  来自Spectator
• What may be done to reduce the influence of intractable opponents?
  能做些什么来减少那些难缠的反对者的影响呢？
  
• It emerged as the most intractable issue of our era.
  它成了我们时代最难解决的问题.
  
• The economy still faces intractable problems.
  经济仍然面临着一些棘手的问题。
  
• His hair still jumped up in that intractable cowlick.
  来自J. Krantz
• The immigration issue is tough but it's not intractable.
  来自BBC