0 A once-in-a-lifetime experience or opportunity is very special because you will probably only have it once:
A tour of Australia is a once-in-a-lifetime experience.
An alternative is to prevent name changes either by using real names or through requiring users to acquire unique pseudonyms, namely once-in-a-lifetime pseudonyms.
We have a once-in-a-lifetime test, the number plate test, and it is not even a very good one.
The standards of this country should not be set by visitors, particularly those who might be making a once-in-a-lifetime visit.
The consumer is involved in legal activity as a once-in-a-lifetime experience.
Many of their clients are small, once-in-a-lifetime clients.
That type of suffering is not a once-in-a-lifetime matter, but—for those who have suffered it—lasts for a whole lifetime.
Let me repeat, this is a once-in-a-lifetime opportunity.
Our proposals represent a once-in-a-lifetime opportunity to improve the electricity supply industry.
