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1·Bill was stimulated by the challenge.

比尔受到该挑战的激励。《柯林斯英汉双解大词典》

2·She beat off a challenge to her leadership.

她战胜了对她的领导地位的挑战。《牛津词典》

3·I hope that he proves equal to the challenge.

我希望他最后能应付这一挑战。《牛津词典》

4·You can rely on him to respond to a challenge.

你可以信赖他，他懂得应付挑战。《牛津词典》

5·I called out a challenge, but there was no reply.

我发起了一个挑战，但是没人回应。《柯林斯英汉双解大词典》

6·He said he's game for a similar challenge next year.

他说明年他敢尝试一次类似的挑战。《柯林斯英汉双解大词典》

7·The new government's first challenge is the economy.

新政府面临的第一项挑战是经济。《柯林斯英汉双解大词典》

8·They plan to challenge the constitutionality of the law.

他们计划挑战法律的合宪法性。《柯林斯英汉双解大词典》

9·I relish the challenge of doing jobs that others turn down.

我喜欢接受挑战做别人拒绝做的工作。《柯林斯英汉双解大词典》

10·The role will be the biggest challenge of his acting career.

扮演这个角色将是他演艺生涯中最大的挑战。《牛津词典》

挑战

1·Bill was stimulated by the challenge.

比尔受到该挑战的激励。《柯林斯英汉双解大词典》

2·She beat off a challenge to her leadership.

她战胜了对她的领导地位的挑战。《牛津词典》

3·You can rely on him to respond to a challenge.

你可以信赖他，他懂得应付挑战。《牛津词典》

4·I called out a challenge, but there was no reply.

我发起了一个挑战，但是没人回应。《柯林斯英汉双解大词典》

5·He said he's game for a similar challenge next year.

他说明年他敢尝试一次类似的挑战。《柯林斯英汉双解大词典》

难题

1·The biggest challenge here is irrigation, which consumes 70% of the world's fresh water.

这里最大的难题就是灌溉，因为这消耗了世界上70%的淡水。

2·On smaller machines, adding disks and controllers may be a challenge and may also require the purchase of an expansion unit.

在较小的机器上，添加磁盘和控制器可能是一个难题，还可能需要购置一个扩展单元。

3·A common challenge is how to better manage the content used by these tools.

一个常见的难题是如何更好地管理这些工具所使用的内容。

4·Part of the challenge is that we're not just looking for a single charismatic moment.

这个难题的一部份是因为我们不仅仅是在找一个璀璨的时刻。

5·With guidance and coaching, I hope to demonstrate that developing PHP math libraries is not a difficult task and may represent an interesting technical and learning challenge.

通过指导和训练，我希望证明开发php数学库并不是一项很难的任务，它可能代表一项有趣的技术和学习难题。

提出挑战

1·If Washington were ever to challenge that status quo, the quarrel would escalate to the fundamental disagreement category.

如果华盛顿仍对现状提出挑战的话，争端可能会升级到“根本分歧”。

2·Abdullah said: we will challenge it through legal means, we will exhaust every avenue legally in order to prevent this sort of big rigging, this is stealing a nation's verdict.

阿卜杜拉说：“我们会通过合法的手段提出挑战，我们将用尽一切合法的手段来阻止这种大规模操纵选举的事情发生，这偷走了阿富汗的民意。”

3·I think I can type faster than my assistant (although she might object, and challenge me to a type-off).

我想我能比自己的助理打字更快（她可能会不同意，并且向我提出挑战）。

4·Her outstanding achievement lies in writing method of female bodies, which allows the female to seek for their own narrative tactics for completion and challenge male discourse with unique experience.

其突出成就即在于，以“回到自己的屋子”的女性身体的写作方式，使女性寻找自己话语的叙事策略得以完形，并通过独特的经验内容对男性话语提出挑战。

5·If targets aren't being met, challenge your team to reassess and come back with a new strategy.

如果没有实现目标，你需要向团队提出挑战，要求他们重新评估情况，通过新的策略卷土重来。

发起挑战

1·Now the LCD is poised to challenge the king of the big screens, the plasma display.

如今，液晶显示器正有望向素有大屏幕之王的等离子显示器发起挑战。

2·She added: “In order to reduce fashion's impact on the environment, the fashion industry must begin to challenge conventional attitudes and practices。”

她说：“为减少时尚对环境的影响，时装业必须开始向传统的观念和做法发起挑战。”

3·The lawyers reserve the right to challenge the fee committee's decisions at the end of the case, but the ultimate call will be up to the bankruptcy judge, James Peck.

在案子结束阶段，律师保留向费用监督委员会的决定发起挑战的权利。但是最后的呼吁将取决于主持破产案的法官詹姆斯·佩克。

4·Decade of sword, launched the Cola, the new brand, and with extraordinary courage to challenge the world-famous beverage brands.

“十年磨一剑”，推出“非常可乐”这一全新品牌，并以非凡的勇气向世界著名饮料品牌发起挑战。

5·Inter are looking good so far this season and Nerazzurri fans are hopeful that they can challenge the Bianconeri.

到目前为止国际米兰在这个赛季很被看好，而且国米球迷们非常希望他们的球队能向尤文图斯发起挑战。

挑战赛

1·Students who enter the Curiosity Challenge and are selected as winners will be honored at a special ceremony.

参加“好奇号”挑战赛并被选为优胜者的学生将在一个特别的仪式上受到表彰。

2·I am writing to offer my sincere congratulations to you on your winning the first prize in the Chinese Chess Network Challenge.

我写这封信是为了衷心地祝贺你赢得了中国象棋网络挑战赛一等奖。

3·This competitor may be smiling, but the challenge is no laughing matter.

这名选手似乎在笑，但参加这种挑战赛可不是轻易笑得出来的。

4·The lunar lander challenge is good news for NASA, because it can now count on groups of potential suppliers and experienced engineers to build any future moon lander.

登月飞行器挑战赛对美国国家航空航天局而言是一个好消息，因为它如今可以依靠大批潜在供应商和经验丰富的工程师群体制造出未来所需的任何登月飞行器。

5·The challenge that year was to help an organization reach one hundred million people in five years.

那一年的挑战赛是帮助一个组织在5年内触及1亿人。

(1)meet the challenge迎接挑战；满足要求

(1)rise to the challenge接受挑战，奋起应付挑战

(1)take up the challenge应战

(1)challenge cup挑战杯；优胜杯；奖杯