Sentence examples for a defining challenge from inspiring English sources

"Africa is poised for a defining challenge," he said.

"This is a defining challenge of our future," he said.

Calculating the value of these relationships has become a defining challenge for businesses and individuals.

Climate change, and our success or failure in dealing with it, will be a defining challenge.

These kinds of digital, ethical problems represent a defining challenge of the 21st century.

There again, he and his party are not the only ones who are faced with a defining challenge.

Each Assembly cohort comes together around a defined challenge.

The use of a defined challenge strain appeared to be advantageous in view of the extreme genetic variance of H pylori in patients.

Not surprisingly, it was found that markers that involve the standardised assessment of relevant symptoms (e.g. symptoms of common infections or allergies) or in vivo responses to a defined challenge with antigens or allergens (e.g. response to vaccination or allergen provocation) provide the most useful indication to interpret the modulation of immune function.

A: Defining intelligence between species is challenging.

Safeguarding the financial security of the retired -- it's the defining challenge of a global society rapidly getting older.