释义 |
idiomgrandmother/grannyteach your grandmother/granny to suck eggs BrEBrEused in order to say that someone is telling you something that you already know:Before giving a presentation, find out what the group already know, so that you're not going in and teaching your grandmother to suck eggs.If a man starts lecturing a woman on feminism, should she tell him not to teach his granny to suck eggs, or should she try a different tactic?
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