Sentence examples for is a persistent problem from inspiring English sources

Precipitation is scarce, and drought is a persistent problem.

Enamel decalcification during orthodontic treatment is a persistent problem.

Long-term unemployment is a persistent problem in the US that has vexed even top economists.

It is a persistent problem, but the Yankees see no way around it.

And it appears we've reached the point where rapid swings in price is a persistent problem.

Unemployment is a persistent problem, and many residents work abroad, especially on Ascension Island.

The early age cracking of concrete is a persistent problem for structures.

The identification of protein domains within multi-domain proteins is a persistent problem.

The formation of inorganic scale deposits of the alkaline earth metals is a persistent problem.

Energy storage is a persistent problem in general and electrical energy storage in particular.

During the spring and fall, we use a goose-poop removal machine, but this is a persistent problem".