( informal ) used to emphasize that sth is easy to do or understand
SYN rocket science :
Look, this isn't brain surgery we're doing here.
( informal ) used to emphasize that sth is easy to do or understand
SYN rocket science :
Look, this isn't brain surgery we're doing here.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005