挑战的英文：
challenge

Pinball Challenge Deluxe
挑战弹珠台-豪华版

Business philosophy: "Challenge the status quo."
运营理念：“挑战现状。”

throw down the gauntlet;take up the gauntlet.
拒绝挑战;胆敢应战

You should challenge the limit and exceed yourself.
你应该挑战极限，超越自我。

The bullhorn acacia has serious competition
牛角相思树面临着严峻的挑战。

The appearance of the transsexual person challenges the civil order and legal system.
变性人的出现对社会秩序及法律制度提出了挑战。

The old administration system is under greater and greater challenge.
旧的行政管理体制正受到越来越大的挑战。

A formidable challenge;a formidable opponent.
难以应付的挑战;难以对付的对手

As an islands country, Bahamas is faced with quite a number of challenges.
作为群岛国家,巴哈马面临着诸多挑战。

Keeping up with trends and developments is an on-going challenge, but what is the next step?
赶上潮流和改变是一个不间断的挑战，但下一步呢？

challenge to the array
对陪审团的组成表示反对或提出异议|要求全体陪审员回避或更换

To challenge to a duel.
挑起斗争

Do you have the balls to challenge authority?
你有挑战权威的胆量么？

This examination is a real challenge.
这次考试是一次真正的挑战。

His challenge draws no reply.
他的挑战没有引出回答。