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》

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》

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》

He calls it "cow power to horsepower." Leonhardt says the challenge is to cost-effectively remove impurities from the manure-derived methane.

VOA: standard.2010.02.23

- Part of the challenge is speed, too, how quickly you can get these answers in terms of getting them in on time.

部分困难也会来自于速度，你多快能做出答案,能否在规定的时间做完。

麻省理工公开课 - 化学原理课程节选

And also for the challenge factor because they challenge the way I was thinking and writing

还有挑战因素，因为他们挑战了我思考和写作的方式，

怎么协调意见冲突 - SpeakingMax英语口语达人

The challenge is, the more people that are working overnight, the more support services you need.

BBC: The cities that never sleep

Now Ziese is facing the challenge that he is the right man for the job.

BBC: Ziese feels Ghana heat

The challenge of transforming the powder into an aerosol cloud was handed to rocket scientist Carlos Schuler.

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