We also know that a long time without change or challenge can lead to boredom, and physical and mental strain.

我们也知道，长时间没有变化或缺乏挑战会导致无聊，造成身体和心理上的疲惫。

youdao

He was thrilled to be doing the comedy that he always felt he should do, but even during his last few years, he always had a sense of curiosity, wondering what new role or challenge might be just around the comer.

他很高兴能出演这部他一直认为自己应该出演的喜剧，但即使是在他生命的最后几年，他也一直有一种好奇心，想知道他眼前可能还有什么新的角色或挑战。

youdao

Challenge conventional wisdom or challenge the audience's assumptions.

挑战传统观点或观众的想法。

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"A normal baby could respond to that challenge, lift its head up, turn its head and arouse or wake up,"

VOA: standard.2010.02.08

As with the passage on the falling of the leaves there's a kind of elegiac tone that works to undo, or at least to challenge, our theological certainty.

在描写落叶的段落里,有一种挽歌式的腔调，似乎要抹掉，至少是挑战神学上的确定性。

耶鲁公开课 - 弥尔顿课程节选

Are you among those more comfortable, have you taken any computer science, were you programming at the age of 10 but you'd actually like to learn a bit about things you don't yet know and challenge yourself with new content or are you somewhere in between?

你对电脑比较熟悉么，你上过计算机专业方面的课程吗？,你是不是10岁就会编程,来上课的目的只是为了学习未知的知识,或者用新知识来挑战战自我？,还是二者兼有？

哈佛公开课 - 计算机科学课程节选

Do you see yourself as the white knight who can solve any problem or challenge?

FORBES: The Problem with Heroic Leaders

Is there an opportunity or challenge ahead for any companies that could dramatically change their position?

FORBES: Grading Union Square Ventures' Portfolio

Many women hesitate to speak up for themselves or challenge behavior they see as unfair.

WSJ: Stress at Work: Why Women Feel It More Than Men