Sentence examples for has proven hard from inspiring English sources

This is alluring but has proven hard in practice.

CHRIS LILLEY Australian comedy has proven hard to translate for an American audience.

The "revolutionary concept" of the Osprey entranced Congress, but has proven hard to realize, he said.

Stiglitz said it was unsurprising that a carbon price has proven hard to implement on a worldwide scale.

And the Great Depression that followed the 1929 crash fostered a climate for reform that has proven hard to replicate.

"Obviously people have been doing this with other techniques for many years, but it has proven hard to do at very small time scales".

But this has proven harder for the Democrats than four years ago -- and not just because of Mr. Bush's manner.

This has proved hard.

The memory has proved hard to digest.

The question has proved hard to answer.

This has proved hard in practice.