challenge

Wolseley, he judges, never accepted that the logistical challenges incurred by his decision to follow the Nile had doomed his campaign.

Starbucks said in a post on its blog that though it supports the intent of the city’s law, its complexity creates real-world challenges.

A long-standing challenge has been that only a small share of the carbon surface area needed for energy storage has been usable.

The aerospace sector has been on high alert for potential quality issues after Boeing’s yearslong battle to overcome a run of production challenges.

It faces other challenges, too, such as convincing potential users who have just learned one set of AI vocabulary and skills that they should adopt something new.