Sentence examples for particularly difficult challenges from inspiring English sources

The synthesis of carbohydrate structures presented particularly difficult challenges in organic chemistry.

Children whose families live well below the poverty line or who live in very disadvantaged neighborhoods can face particularly difficult challenges.

Tuberculosis in children presents particularly difficult challenges, but research priorities and advances in pediatric tuberculosis could provide wider insights and opportunities for tuberculosis control.

Mr. Huntsman has a particularly difficult challenge.

And that, he said, presents a particularly difficult challenge for the Bush administration.

Lawyers for Ms. Hernandez and Mr. Moore face a particularly difficult challenge in the California courts.

The Guggenheim Museum's Works & Process series set a particularly difficult challenge for the young ballet choreographers Emery LeCrone and Avi Scher.

With Mr. Bush vowing to hold down the growth in government spending, Democrats face a particularly difficult challenge in winning full financing for the programs they favor.

When they encounter a particularly difficult challenge, he said, their attitude is, "Hey, it's starting to get fun now, and we're earning our money".

A particularly difficult challenge is posed by Pakistan, a traditional American ally that now acts as unofficial patron to Afghanistan's ruling Taliban movement.

For example, you won't be able to go back to the place where you started: Once you've faced down a particularly difficult challenge, you will have grown so much you might hardly recognize yourself.