Sentence examples for world's toughest from inspiring English sources

It's the world's toughest job.

At 32, she's already tackled some of the world's toughest challenges, but takes it all in her stride.

California has some of the world's toughest coastal development regulations.

Yosemite duo complete world's toughest climb Climbing El Capitan – in pictures.

This is the Barkley Marathons, the world's toughest and most secretive trail race.

This simple trick turns commercial polymer into the world's toughest fiber.

The Liar's Ball: The Extraordinary Saga of How One Building Broke the World's Toughest Tycoons.

For decades, USAID and its partners have successfully tackled some of the world's toughest challenges.

Hassan Haji Towakal has lived in one of the world's toughest environments for 80 years.

Around the world, a great many promoters now claim the mantle of world's toughest race.

It continues to flourish despite some of the world's toughest libel laws.