Sentence examples for an unsolved from inspiring English sources

An early diagnosis of DM remains an unsolved challenge.

Or just an unsolved puzzle?

His life ended in an unsolved mystery.

His death remained an unsolved mystery.

The extinction of the conodont animal remains an unsolved mystery.

Oliver, meanwhile, is preoccupied with an unsolved case from 1925.

"That sounds like an unsolved problem". So is that it?

Tanner's unit has reopened an unsolved two-year-old case.

But Hutchinson described an unsolved mystery, a famous one.

The Mets' pitching rotation has been an unsolved mystery.

Pain control during this procedure is still an unsolved problem.