Only dumb luck had kept him from stopping a round, or more than one, while he lay unconscious.

Only luck kept him from taking more wounds in those exchanges.

It seems some bad luck keeps happening to this team.

I keep waiting for something to happen to me, but my luck keeps running in the black.

Only good luck kept him from coming before us.

Good luck and quick work kept anyone from being knocked down and carried off.

After having no luck keeping a job, he must return to his village.

Only luck kept those sympathy messages from referring to her.

Only dumb luck had kept him from breaking an arm or an ankle.

She would have to learn by trial and error, while the luck itself kept her alive.