pertinacious [ˌpɜ:rtnˈeɪʃəs]

例句:

• I can affirm that he is tenacious and pertinacious as are few.
  我可以肯定,像他那样不屈不挠、百折不回的人是十分罕见的.
  
• Questions buzzed in his head like pertinacious bees.
  一连串问题在他脑子里盘旋着,就象纠缠不休的蜜蜂.
  
• He had been driven into a corner by the pertinacious ingenuity of Miss French.
  弗伦奇小姐的再接再厉的巧妙手腕逼得他一点办法也没有.
  
• Bruno was declared an "impenitent, pertinacious, and obstinate heretic," and he was condemned to die.
  来自NEWYORKER
• David is pertinacious, and when his meager bankroll is stolen, he vows to walk the entire distance.
  来自NEWYORKER