IF IT AIN'T BROKE, DON'T FIX IT


Meaning of IF IT AIN'T BROKE, DON'T FIX IT in English

( informal ) used to say that if sth works well enough, it should not be changed

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.