She dismisses the reform process as an exercise in collective navel-gazing.

她对这场改革嗤之以鼻，认为只是场无实际行动的集体空想而已。

《柯林斯英汉双解大词典》

As an exercise, try to explain why before reading the next paragraph.

作为练习，在阅读下一段之前请试着解释一下原因。

youdao

That's left as an exercise for the reader.

这将作为练习留给读者来完成。

youdao

Garcia is a Cuban immigrant who opened his pilates exercise studio in November in an upscale neighborhood after retiring as a professional ballet dancer.

VOA: standard.2010.05.06

As an exercise in finding Nash Equilibrium, by this stage in the course most of you are looking at that saying, that wasn't hard.

作为寻找纳什均衡的一个练习,在此阶段,你们中的大多数人都会说,那不难

耶鲁公开课 - 博弈论课程节选

Well, as an exercise in game theory, that really wasn't very hard.

作为博弈论的一个练习,这个确实不难

耶鲁公开课 - 博弈论课程节选

But should that not happen, his current diplomacy will be seen as an exercise in naivety.

ECONOMIST: Palestinians

The Court majority rejected the mandate as an exercise of Commerce Clause power.

FORBES: Dismantling Federalism Is A Shortcut With A Very Steep Price

His first lesson was to think of shooting as an exercise in mobility.

FORBES: Getting Ready for your Fall Hunt at Sandanona