Sentence examples for the problem was complex from inspiring English sources

Mr. Sturgell acknowledged that the problem was complex.

Health care experts said they applauded the mayor's efforts but said the problem was complex and labor intensive, and would take years to solve.

The problem was complex enough - material/tank cooling properties, a week-long slot booking schedule, the weather forecast, and a set of linked tank heating, pipeline movement, and pumping activities - that manual planning was not going to lead to optimal savings.

The problem is complex and involves many factors, they said.

The problem is complex, he said, but the demand for answers is increasing.

But though the problem is complex, ambulance diversions offer one relatively simple gauge of its extent.

The problem is complex and must be solved numerically.

The problem is complex, but there are a few ways in which the scientific community could help.

The problem is complex, the issues are not well defined, and data are often lacking.

Sagan said the U.S. government is not complacent about the danger of insider threats to nuclear security, but the problem is complex and the dangers hard to measure.

It is not so much the failure of CDP that deserves condemnation – the problem is complex and any policy change will face risks.