But the last year has been one of great frustration.

The families are having to go through a lot of frustration.

And they turned the 76ers' night into one of frustration.

Both times, he did feel something close to that kind of frustration.

And there's a lot of frustration here to work off.

But when he looked up, it was with a look of frustration on his face.

It was not the only potential point of frustration for his campaign.

That thought quickly gave way to a feeling of frustration.

Then again, you may come to share a little of her frustration.

It's been a long time, two years, where I felt a lot of frustration.