گزارش خطا در معنی کلمه 'teach grandmother to suck eggs'

1 general:: Phrase(s): teach one’s grandmother to suck eggs Fig. to try to tell or show someone more knowledgeable or experienced than oneself how to do something. • Don’t suggest showing Mary how to knit. It will be like teaching your grandmother to suck eggs. • Don’t teach your grandmother to suck eggs. Bob has been playing tennis for years.