challenges
challenges是什么意思，
challenges怎么读
语音:
n. 挑战( challenge的名词复数 )；要求；（警卫等）查问口令；怀疑
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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