Sentence examples for expensive challenge from inspiring English sources

But keeping these gene banks safe and viable is a complicated and expensive challenge.

Long-term care constitutes a difficult and expensive challenge in any health system.

Preserving and maintaining those old military barracks, officers' quarters, stables and other structures has been an expensive challenge.

Towing the ship to the United States would be another dangerous and expensive challenge — in the 1960s and '70s, several retired Fletchers grounded or sank while being towed.

Mr. James, who overcame the most forceful and expensive challenge of his life, won with 53percentt of the vote to Mr. Booker's 47percentt.

Funding equitable programs across city schools has been an expensive challenge for the District, particularly because many schools have low enrollment.

Potential owners are realizing that with such superlatives come expensive challenges.

The salinity of soil and water resources is one of the economically expensive challenges to achieve sustainable development across the world.

But the west's sharp legal minds, backed by vast drug company wealth, are willing and able to mount expensive challenges in the courts to uphold their patent rights - and thus the price of their drugs - as is about to happen in Pretoria.

The most expensive challenges are more comprehensive open innovation challenges that require a lot of people around the world.

New fields offer new and expensive challenges - in deep water, or requiring new technologies to handle difficult geology, high pressure and high temperatures.