Sentence examples for A significant challenge from inspiring English sources

A significant challenge is to recognize new activities effectively.

"It's a significant challenge.

That's a significant challenge.

Still, she faces a significant challenge.

It would be a significant challenge".

Mercury, however, has posed a significant challenge.

Would carbon composites create a significant challenge?

And therein lies a significant challenge.

Reading these texts is a significant challenge.

Still, checkers poses a significant challenge.

This endeavor posed a significant challenge.