challenger [ˈtʃæləndʒɚ]

例句:

• The Frenchman held his own against the challenger.
  这名法国人顶住了挑战者的进攻。
  
• the official challenger for the world championship title
  世界冠军头衔的正式挑战者
  
• The judges gave the nod to the winning challenger.
  裁判们对挑战者的胜利给予确认.
  
• Fascinating reading about how the Challenger got their results.
  来自SA
• Finding some shade he looked up at his challenger.
  来自THETIMES
• It earned the challenger another warning from the referee.
  来自THETIMES