Sentence examples for proven difficult for from inspiring English sources

Metastasis is the result of complex genetic interactions that have proven difficult for scientists to study.

Poker requires reasoning and intelligence that has proven difficult for machines to imitate.

Drawing sweeping conclusions about the PC market has proven difficult for analysts, as reports from industry leaders contradict one another.

That would seem to be an easy win for us, but TFC have proven difficult for us in the past.

Thus far it has proven difficult for Ramos to have many top players together at once because of club commitments.

Studying the quantum world of subatomic particles and the forces that govern their behavior has proven difficult for even our most powerful supercomputers.

Sunday's game proved difficult for everyone.

The early 1990's proved difficult for Mr. bin Laden.

Politically, too, the approach could prove difficult for Abbott.

The adjustment is already proving difficult for some.

It acknowledges its withdrawal could prove difficult for some consumers.