He laughed once; the sound was more like a curse.

He never laughed once during my reading - just that little, thin smile.

She laughed once, not admitting that it was no more than shed expected him to ask for.

She laughed once, then turned away from the mirror.

Once laughing boy has gotten over his headache and gone home.

She laughed once, a mad sound that should have alarmed her but didn't.

I laughed once, and he has not been a near brother to me since.

Somewhere far away through the open window a drunken voice laughed once and then was silent.

I barely smiled and only laughed once in the whole movie.

Watched it for about ten minutes never laughed once!