What does it mean to revise a piece of writing?

To revise a piece of writing ins to edit it and rewrite parts to make it sound better. You might rewrite whole sentences or even take some out to make sure it sounds better.

Explanation:

the best sentence that shows the best placement for the modifier "on the ice" is the one which contains it in the end of the sentence or in its beggining followed by a comma, that indicates it works as adverbial, dislocated in the sentence.

the girl promptly slid on her rollers on the ice.

on the ice, the girl promptly slid on her rollers.