If you fall on something when it arrives or appears, you eagerly seize it or welcome it.
They fell on the sandwiches with alacrity.
PHRASAL VERB : V P n
If you fall on something when it arrives or appears, you eagerly seize it or welcome it.
They fell on the sandwiches with alacrity.
PHRASAL VERB : V P n
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006