I regret having a one-night stand with that person.

He has a one-track mind when it comes to his career.

The customers arrived one after another.

He completed all his tasks in one fell swoop.

After a few weeks of practice, she finally hit her stride and started performing at her best.

One way or another, I will find a solution to this problem.

Either option is fine.

The bright colors of the painting draw one's attention immediately.

One way or the other , we'll find a solution.

She did a one-eighty and decided to go out with him.