Sentence examples for very difficult to solve from inspiring English sources

That's what makes it very difficult to solve the problem.

This problem, though easy to state, proved very difficult to solve.

But she said: "It's very difficult to solve this dilemma when Israel is under physical attack.

"Once it becomes a territorial issue, it can get very nasty and very difficult to solve," he says.

Yet there are also persistent urban problems in the UK that are proving very difficult to solve.

The issues and problems are very difficult to solve; for example, it's hard to move China off the dime.

The mystery of what kind of primate Australopithecus evolved from was very difficult to solve, because this evolution happened only in Africa, and the fossil record of human evolution was so limited.

"These cases of people sending suspicious substances through the mail are very, very difficult to solve," said William P. Kinane, a former program director at the Federal Bureau of Investigation in San Francisco.

Generally, they are very difficult to solve.

Hence, the problem is very difficult to solve.

Therefore, it is very difficult to solve them analytically.