So was the sense that such frustrations come from sad national experience.

The frustration with fair use comes back to what we were just talking about: today, more people need to navigate it.

St. John's frustration came from the way it lost, especially when there was so much to be gained.

The frustration came from knowing it could have been more.

The frustration for parents comes from knowing that their children have only so much time to try anything new.

His frustration came through loud and clear in the first part of the e-mail message.

Every so often, the frustration on both sides came to a boil.

The frustration came through; she could feel it in his hands.

Once again, the frustration of Pacific travel came into play.

"The frustration comes from knowing we're just a better team than what we've shown."