The biggest difficulty in making the film was to cut its length down.

But the big difficulty is how you make yourself heard.

Her biggest difficulty when moving here was the language barrier.

"Except we also have one big difficulty down there on the ground."

But the biggest difficulty appears to be over the top leader.

One of the biggest difficulties is seeking help in the first place.

But by far the biggest difficulty is obtaining the fuel.

The biggest difficulty we have, though, is to put it into some sort of picture.

The big difficulty is, as always, the trust of the fishermen.

The biggest difficulty in growing heather is finding those young plants.