Still, no one has come up with a clear solution.

These and other disturbing trends have only been getting worse, with no clear solution in sight.

To date, although a number of approaches have been tried and used, no single clear solution to this problem has emerged.

There are, however, few clear solutions to the problem of billing accuracy.

There was no clear solution to the price policy dilemma.

Currently, no clear solution exists to deal with these activities.

But in the past, there was always a clear solution: export more.

Many say they do not see a clear solution.

The young were still entitled to believe that the world's problems always had clear solutions.

There was no clear solution to combating Britain from the air.