The phrase "a time when balls" is grammatically correct and can be used in written English.
It can be used in contexts discussing events or situations involving balls, such as sports or social gatherings.
Example: "There was a time when balls were the highlight of the social season, bringing together the elite of society."
Alternatives: "an era of balls" or "a period when balls".
While the latest work was well within the limit - the embryos were grown for 13 days to the critical time when balls of cells are poised to start the process of sculpting the human form - the achievement has led to calls to revisit the legal limit.
He put into effect the rules requiring nine-member teams and nine-inning games, and advocated the "fly rule," which made catching a fly ball a putout at a time when a ball caught on one bounce still constituted one.
Martin argued that Lowe's accomplishments were overlooked because he played "at a time when the ball had more turtle in it than rabbit".
A time when the same ball might last the entire game, and fielders wore gloves not much larger than their hands, and batters strived to hit 'em where they ain't.
In the opening scenes, Romanian authorities are shown to be frantically engaged in shutting down a brothel, whose presence they believe would embarrass local high society at a time when a grand ball is set to take place.
But he has also got a lot to learn as well, not least of all when he needs to release the ball, when he can turn with it, when he just needs to secure it because for every good turn there was a time when he lost the ball and put us on the back foot defensively.
Halloween should be a time when wearing a zombie glitter ball or dressing as a bloodthirsty Whole Foods cashier is acceptable.
Chucking a Frisbee about may seem frivolous to some but there was a time when throwing a big orange ball through a hoop was also seen as just a bit of pleasant exercise, and no way to make a living.
It's like it's become a sport outside their reach, so they go back to a time when life was slower, the ball was slower, the rackets were primitive.
"He had the first $20,000 salary in pro ball at a time when many N.F.L. players weren't getting $5,000.
