challenges

常见例句

用作名词 (n.)

• Exploring outer space is a challenge to mankind.
  探索外太空是一项向人类发出的挑战。
• I accepted a challenge to a tennis match.
  我接受了网球赛的挑战。
• We should look upon the relative backwardness of our economy as a challenge to greater exertions.
  我们应该把我国经济的相对落后看成是要求我们做出更大努力的一种鞭策。
• A sentry gave the challenge,“Halt!Who goes there?”
  哨兵喝问:“站住!什么人?”
• He sent a challenge to run a race.
  他发出了赛跑比赛的挑战书。

用作动词 (v.)

用作及物动词: S+～+ n./pron.

• I did not think he was right, so I challenged him.
  我认为他是不对的,因此向他提出质疑。
• The job doesn't really challenge him.
  这项工作不能真正地考验他。
• When I tried to enter the building, the guard at the door challenged me.
  我试图进入大楼时,卫兵查问了我。
• I challenged him to a game of chess.
  我要求同他下盘棋。
• U.S. business today is challenged by aggressive overseas competitors.
  今天的美国商业受到咄咄逼人的外国竞争者的挑战。
• His claim to that piece of property is being challenged.
  有人就他对那份财产的声明提出异议。
• He was busy challenging for the leader of the club.
  他正忙于竞选争当俱乐部领导人。

S+～+wh-clause

• He challenged why I didn't get things ready before.
  他质问我为什么不早点准备。

用作宾补动词: S+～+ n./pron. +to- v

• I challenge you to show your proof.
  我要求你拿出证据来。
• He challenged us to try again.
  他向我们挑战,要我们再试试。

用作名词 (n.)

• The crossing of this dangerous river was a challenge to most of us.
  对我们大多数人来说,横渡这条充满危险的大河确实是个挑战。
• He accepted his friend's challenge to swim across the river.
  他接受朋友提出的挑战，游过这条河。
• We accepted their challenge to a baseball game.
  我们接受了他们棒球邀请的挑战。
• He ignored the sentry's challenge to halt.
  他不理睬哨兵喝令止步的盘问。
• Their legal challenge was unsuccessful.
  他们的法律质疑未获成功。

用作动词 (v.)

• Nowadays no one will challenge the fact that the earth is round.
  现在没有人会对地球是圆的这一事实提出异议。
• New competitors are emerging to challenge the old economic arrangements.
  新的竞争对手正在崛起，向旧的经济布局挑战。
• The sentry challenged the stranger at the gates.
  哨兵查问在门口的陌生人。
• I did not think he was right, so I challenged him.
  我认为他是不对的，因此向他提出质询。
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