Sentence examples for is a very challenging from inspiring English sources

"This is a very challenging area".

"This is a very challenging environment.

Yes, that it is a very challenging question.

"It is a very challenging thing to do.

"This is a very challenging time for the industry".

SYDNEY FINKELSTEIN: Yeah, well that is a very challenging concern.

Contrast Enhancement Evaluation (CEE) is a very challenging problem.

Indeed, tracking epidemic disease is a very challenging issue.

Additionally unsupervised impact evaluation is a very challenging problem.

Synchronizing time across mobile devices is a very challenging problem for app makers.

"It is a very challenging time, but then it always has been," he said.