The crew were at three watches, except upon some extraordinary occasions.

Except on extraordinary occasions, Rosa never came during the day.

It was an extraordinary occasion, lively, moving, startling in its diversity and with much good humour.

He never spoke to him, except under the most extraordinary occasions.

The extraordinary occasion was marked by a relatively quiet meal.

The telephone, like the telegraph, post office and the railroad, is only upon extraordinary occasions used or needed by the poor.

What's more, their appearances signal extraordinary occasions, as when God is about to change the course of history.

And what thoughts or memories, would you guess, were passing through my mind on this extraordinary occasion?

Only on an extraordinary occasion do principles carry the day.

For an extraordinary occasion I might pay as much as $40 for the best of them, but $250 to $2,000 a bottle?