challenged [ˈtʃæləndʒd]

例句:

• Democratic leaders have challenged the president to sign the bill.
  民主党领袖对总统签署这项法案提出了质疑。
  
• The move was immediately challenged by two of the republics.
  此项动议立即遭到其中两个共和国的反对。
  
• This was Hyer's last fight, for no one else challenged him.
  这是海尔的最后一场比赛，因为再没有人向他发起挑战。
  
• She challenged expectations and looked comfortable in the process.
  来自THETIMES
• No one challenged him though some certainly held doubts.
  来自NEWYORKER
• But on one point Pandit cannot be challenged.
  来自NEWYORKER