fill up (with sth) | ˌfill sth ↔ ˈup (with sth)
to become completely full; to make sth completely full :
The ditches had filled up with mud.
to fill up the tank with oil
fill up (with sth) | ˌfill sth ↔ ˈup (with sth)
to become completely full; to make sth completely full :
The ditches had filled up with mud.
to fill up the tank with oil
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005