If a roof or ceiling falls in , it collapses and falls to the ground.
Part of my bedroom ceiling has fallen in.
= cave in
PHRASAL VERB : V P
If a roof or ceiling falls in , it collapses and falls to the ground.
Part of my bedroom ceiling has fallen in.
= cave in
PHRASAL VERB : V P
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006