to do sth from beginning to end, especially when it takes a lot of time or effort :
She worked her way through the pile of documents.
to do sth from beginning to end, especially when it takes a lot of time or effort :
She worked her way through the pile of documents.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005