Sentence examples for a difficult and longstanding from inspiring English sources

It acknowledged that establishing a safe lower limit was a "difficult and longstanding problem".

This opens up a difficult and fascinating new challenge that is paradoxically also longstanding and unresolved.

Devlin acknowledges that transcribing hip-hop is a difficult and often highly subjective task, and credits the book with correcting some of his own longstanding misheard lines.

Higher education is a noble and longstanding enterprise.

Meanwhile Apple has a deep and longstanding connection with the education market.

It also asserted it was following a standard and longstanding industry practice.

(The two high schools share a heated and longstanding rivalry in athletics).

Thus as a general rule, GPs have a continuous and longstanding relation with their patients.

And Riad Seif, a key American ally and longstanding dissident in Syria, is being marginalized.

This manuscript addresses a number of important and longstanding questions in the field of membrane traffic.

And a difficult year.