Sentence examples for required very difficult from inspiring English sources

But its construction required very difficult and dangerous manual labor: leveling roadbeds, boring tunnels, and blasting mountainsides.

All of these places are very severe hotspots which require very difficult water reform.

The 2010 budget that will be presented to the authority's Finance Committee on Monday, and the full board on Wednesday, "will require very difficult choices," Mr. Dellaverson said.

"The health board is facing a major cost savings challenge in 2013/14 and the period ahead which will require very difficult decisions on service delivery and configuration to be considered," the report said.

The reality was that she suffered from an undiagnosed and totally uncontrolled bipolar disorder that sometimes made the selflessness parenting requires very difficult.

The established mathematical foundation requires very complicated and very difficult proofs.

Dr. Pogge acknowledged that measuring ecological benefit requires "very tricky and difficult decisions," and "there will always be critics," he said.

In case is badly conditioned (e.g. when line-of-sight occurs, becomes a singular matrix), the pseudoinversion of in (15) using linear detection will be very difficult which requires very large dynamic range.

"The nature of children cases is that they require the courts to make decisions in the best interests of the subject child, requiring often very difficult balancing exercise in respect of competing aspects of the child's welfare," he said.

The suggestion is that as capabilities are very hard to measure or assess in such a public fashion, and as they would require very large amounts and difficult sorts of information, the capability approach is unworkable as a theory of justice.

We've already burned through two-thirds of our global carbon allowance and avoiding dangerous climate change now requires some very difficult choices.