Sentence examples similar to a one-off verification from inspiring English sources

Collecting at the first hospital visit was also thought to be acceptable as a one-off but repeat recording at subsequent visits was not thought necessary, however repeat visits could be used as a verification point.

He was a one-off".

This was not just a one-off".

"He's a one-off special person.

But it was not a one-off.

Few think that was a one-off.

But it should be a one-off.

So that impact is a one-off.

I hope this is a one-off.

Will this be a one-off?

"This is not a one-off.