first one person or thing, and then another, and then another, up to any number or amount :
The bills kept coming in, one after another.
first one person or thing, and then another, and then another, up to any number or amount :
The bills kept coming in, one after another.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005