Sentence examples for proved difficult to devise from inspiring English sources

The Home Office has been working for at least 10 years on a roadside drug screening device, but they say that as well as the problem of substance diversity, it has proved difficult to devise a small, easy to use device that can withstand all weather conditions.

Despite the public health burden imposed by CFS, diagnostic, treatment and prevention strategies have proven difficult to devise because the etiology, pathophysiology and risk factors of CFS remain unknown [reviewed in [ 5]].

Anything longer proves difficult to prepare.

Genocide has proved difficult to prosecute.

The effect proved difficult to measure.

The latter aim proved difficult to enforce.

Yet reform proved difficult to implement.

The furlough plan proved difficult to enforce.

The advice proved difficult to follow.

Neutrality proved difficult to maintain, though.

Alas, it proved difficult to find.