It is difficult work, and they do not like getting into conflicts with their state friends.
"I thought perhaps he might be finding the work too difficult."
He will have missed only some cold and difficult work.
This has been a very difficult work to complete and needed a lot of research.
All we need to pay you for is doing this really difficult work.
As one put it, there is "much difficult work still to do."
It is difficult work, but not always for the obvious reasons.
"You've got people doing the country's most difficult work and they would love to be led," he said.
"There's some difficult work ahead of us if we are to come to terms on a new agreement," he said.
"In this case the really difficult work was done by the author."