to follow a plan, schedule, etc. :
to work to a budget
We're working to a very tight deadline (= we have little time in which to do the work) .
to follow a plan, schedule, etc. :
to work to a budget
We're working to a very tight deadline (= we have little time in which to do the work) .
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005