Sentence examples for so difficult to establish from inspiring English sources

Because fixing is so difficult to establish beyond reasonable doubt, the best weapon available to the cricket authorities is a combination of deterrence and education.

It's so difficult to establish a new, popular drama, particularly in daytime, where budgets are tight and the brushstrokes must be kept reasonably broad.

Muldoon said the nickname Michael had given his father (a term in Ireland to denote someone being slightly mad) told him that there had been a "wonderfully relaxed attitude between father and teenage son, one I now know is so difficult to establish and even more difficult to maintain".

Why is it so difficult to establish how many girls are missing?

"It's easy to survive in corp dev and build a career because it is so difficult to establish concrete goals and metrics upon which the corp dev function can be evaluated".

In the remainder of this paper, we illustrate the relation between the midlatitude positive bays and several other indicators of substorm onset and show why it is often so difficult to establish an accurate time sequence of events occurring during a substorm.

"For ethical reasons you can only carry out this research on dead birds – so it's difficult to establish exactly how they've died," says Thompson.

Records of average world temperature over the past several decades often show changes of 0.1 to 0.3 °C (0.2 to 0.5 °F) from year to year unrelated to any known volcanic eruptions, so it is difficult to establish with certainty whether volcanoes have a major impact on climate.

Much of the stuff that China makes is no longer produced in the rich world, so it is difficult to establish a direct link.That may also be because the data are not detailed enough to capture the effects on relative wages within industries, says Josh Bivens of the Economic Policy Institute, a think-tank in Washington, DC.

Serovar or molecular data from animals and humans are limited, so it is difficult to establish the main sources of human infection.

This means that little is known about total fluid intake, so it is difficult to establish fluid recommendations on the basis of scientific evidence.