Because the job was not challenging enough.

因为那份工作挑战性不够。

youdao

Phil: And if she's not challenging herself, she's not improving.

菲尔：而且假如她没有挑战自己，她也无法进步。

youdao

If your work is either too challenging or not challenging enough, it is likely to become miserable for you.

无论你的工作是过于富有挑战性还是不够有挑战性，都可能使之变得痛苦。

youdao

That's not what we have. It's a state-driven measure. High standards,challenging work for young people across the country.

VOA: special.2011.06.09

He makes it clear that utility is the only standard of morality, in his view, so he's not challenging Bentham's premise. He's affirming it.

明确指出功利是道德的唯一标准，在他看来，他并没有质疑边沁的前提，而是肯定此观点。

耶鲁公开课 - 公正课程节选

We're still close enough to the summer that the air is not just filling us up with extra static electricity, so it's a little more challenging here.

我们现在离夏天更近了,这样空气中不总是,充满额外的静电，所以这时做实验,会有一些挑战性。

麻省理工公开课 - 化学原理课程节选

This is a bit like not challenging a pickpocket because the poor fellow might get huffy.

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Some children may struggle with it, but we don't have the luxury of not challenging our children.

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Many were upset by Lord Pearson's policy of not challenging Eurosceptic Conservative candidates at the general election.

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