up
to contact sb in order to remind them to do sth that they should have done already :
We need to chase up all members who have not yet paid.
up
to contact sb in order to remind them to do sth that they should have done already :
We need to chase up all members who have not yet paid.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005