Sentence examples for it is extremely difficult from inspiring English sources

It is extremely difficult to solve globally, because of its nested structure.

Now it is extremely difficult.

It is extremely difficult to manufacture.

It is extremely difficult to tell.

"It is extremely difficult," she sighs wearily.

It is extremely difficult to get a visa.

"It is extremely difficult to win the ball back.

"It is extremely difficult to change anything," Mr. Sapir said.

It is "extremely difficult to make it profitable," he said.

After that, it is extremely difficult to kick the habit.

But it is extremely difficult to bring off.