Some of the ball games played by girls were especially difficult.

This position was especially difficult for most of the participants.

He said that the decision not to run again this year was an especially difficult one.

The last three days had been especially difficult given the situation.

It is especially difficult because lives are in the balance.

What's more, it is especially difficult for women, who often have little or no resources, to leave their home countries.

For those coming home who have lost everything, the journey is especially difficult.

His first two years, for her, had been especially difficult.

With only one hand, it had been especially difficult for him when he was learning.

But in this case, he said, that would be especially difficult.