Sentence examples for challenges mainly from inspiring English sources

"The guitar presented a few challenges, mainly in tuning and intonation," he said.

Still, he will be heading a department that faces several challenges, mainly in the management of its sprawling health care system.

The Enderby case led to a series of legal challenges, mainly in the public sector, and in local government in particular, where women successfully brought equal value claims.

Over the years we've had some challenges, mainly with jokes that cause offence, notably a series of Prince Phillip 'gaffes' that were lifted from The Guardian.

Through several meetings since then, writing the fine print had been fraught with challenges, mainly because modern life is powered by the burning of fossil fuels, the chief source of greenhouse gas emissions.

'Huge Challenges' Remain "There are still some huge challenges, mainly in the security area," Lt. Gen. David W. Barno, the top American commander in Afghanistan, said by telephone from his headquarters in Kabul, the capital.

So far, traditional colleges have fended off the challenge, mainly because they're favored by the existing accreditation system.

The problems are challenging mainly because of the lack of a general mathematical model to describe human skills.

Traditional introgression breeding for late blight resistance is challenging, mainly because the potatoes are genetically complex and reproduce vegetatively.

Curative resection of extrahepatic cholangiocarcinoma remains challenging mainly due to the limitation of diagnosis regarding vertical and horizontal tumor spreading.

However, finding an efficient and fair resource allocation is challenging mainly due to the heterogeneity of tenants.