At this point, the Point/Laugh project was scrapped in favor of a new, more challenging undertaking.

One challenging undertaking is completing this program without disrupting traffic.

The much larger Gladstone Park was to prove a rather less challenging undertaking.

Even so, it was a challenging undertaking for a young man of twenty with no previous experience.

In fact, it was a challenging undertaking.

Of course, doing so in practice would still be a technically challenging undertaking.

That is true with inherently challenging undertakings like human space flight.

I'm asking you to once again lend your expertise and vast knowledge to a very challenging undertaking.

Providing true legal services to the poor is a much more challenging and recent undertaking.

Although technology supports the latter, these are primarily social processes within a cultural environment, and cultural change, however necessary, is a particularly challenging undertaking.