challenges

challenges是什么意思，challenges怎么读 语音:
  

• 基本解释

n. 挑战( challenge的名词复数 )；要求；（警卫等）查问口令；怀疑

• 速记技巧

• 中文词源

• 双语例句

用作名词(n.)

1. 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。
2. 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。
3. We accepted their challenge to a baseball game.
   我们接受了他们棒球邀请的挑战。
4. He ignored the sentry's challenge to halt.
   他不理睬哨兵喝令止步的盘问。
5. Their legal challenge was unsuccessful.
   他们的法律质疑未获成功。

用作动词(v.)

1. 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。
2. 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。
3. The sentry challenged the stranger at the gates.
   哨兵查问在门口的陌生人。
4. 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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