We have to look at the long-term challenges facing America.

"But they still have a way to go on solving the long-term challenges."

But the long-term challenge of restoring wage growth is still before us.

Why is there so little understanding of the long-term challenge?

But the private trading systems also present something of a long-term challenge.

Given the current and long-term challenges that we face, progress here is absolutely necessary.

We must get down to work straightaway and look upon this as a long-term challenge.

At the same time, we must not lose sight of the long-term challenges.

Perhaps the greatest long-term challenge to the medical system here is simply the changing lifestyle in China.

"The question before this Congress is how to balance today's wants and needs against our long-term challenges."