A good deadline is a bit challenging, without being unrealistic.

一个适合的期限是有点难度，但并非不切实际。

youdao

I found the English homework was a bit challenging for me at first.

刚开始时我发现英语家庭作业对我来说有点挑战性。

youdao

I found that the homework was not as heavy as what I used to get in my old school. However, it was a bit challenging for me at first, because all the homework was in English.

我发现这里布置的家庭作业不像我以前在原来学校时那么繁重，可是一开始我还是觉得有点挑战性，因为所有的作业都是英文的。

youdao

"Being more socially engaged in your community - maybe in environments which aren't always just the same, a little bit more challenging socially - may be a very good thing.

VOA: standard.2010.07.14

I think this is as good list so let's go and think about what might be a little bit more challenging.

我想上面这些都是很好的例子,接下来我们思考一些更有挑战的问题

耶鲁公开课 - 生物医学工程探索课程节选

Abundant natural gas makes the economics of renewables a bit more challenging.

CNN: The myth of energy independence

Getting a driver's license is a rite of passage for many teenagers, but the process was a bit more challenging for 19-year-old Mulligan of Acworth, Georgia.

CNN: Teen drivers with ADD a problem on the road

Scaling the Apple Maps app to this screen size would be a bit more challenging, as you can see here from the size of the directional text.

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