used to criticize sb by saying that they should realize or understand sth :
You know as well as I do that you're being unreasonable.
used to criticize sb by saying that they should realize or understand sth :
You know as well as I do that you're being unreasonable.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005