[ usually passive ] to force sb to rely on sth because nothing else is available :
There was no TV so we were thrown back on our own resources (= had to entertain ourselves) .
[ usually passive ] to force sb to rely on sth because nothing else is available :
There was no TV so we were thrown back on our own resources (= had to entertain ourselves) .
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005