Sentence examples for been surprisingly difficult to from inspiring English sources

But the mechanisms that control eye growth have been surprisingly difficult to identify.

The "standard heat exchanger network problem" has been surprisingly difficult to solve.

"It did work, but it's been surprisingly difficult to get past all that".

What has been surprisingly difficult to find are books where the genders play together, without the boys dominating, outnumbering or otherwise overshadowing the girls.

Victories have been surprisingly difficult to come by for the suddenly less combative man from Australia, who finished No. 1 in the world the last two seasons.

Stable, accurate, divergence-free simulation of magnetized supersonic turbulence is a severe test of numerical MHD schemes and has been surprisingly difficult to achieve due to the range of flow conditions present.

This is surprisingly difficult to answer.

This question is surprisingly difficult to answer.

It is surprisingly difficult to measure progress in artificial intelligence.

Certain applications, statistics or reports are surprisingly difficult to find.

It's surprisingly difficult to get that information.