in the event of sth | in the event that sth happens
if sth happens :
In the event of an accident, call this number.
Sheila will inherit everything in the event of his death.
in the event of sth | in the event that sth happens
if sth happens :
In the event of an accident, call this number.
Sheila will inherit everything in the event of his death.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005