"This is just a one-time occurrence," he said.

It was unclear last night if the work disruption was a one-time occurrence, resulting from Saturday night's altercation, or the beginning of a longer battle.

The unusual trope signify the one-time occurrence of the mitzvah being a new experience.

Note that testing is not a one-time occurrence.

Analysts, though, were unfazed by what they saw as a one-time occurrence.

It was originally intended to be a one-time occurrence in celebration of Manitoba's centennial.

The supplemental draft was a one-time occurrence designed to fill out the league's rosters and to ensure competitive play.

The overall theme is that to forget what happened, or to think of it as a one-time occurrence, would be a huge mistake.

Her seizure had surely been a one-time occurrence.

Since it was claimed in related issues that some species of spiders shed their skin once in a lifetime, this may be a one-time occurrence.