"teach grandma how to suck eggs" in Chinese (Traditional)
Definition
這句話形容試圖教已經很懂這件事的人，尤其是行家或長輩，如何做某件事。
Usage Notes (Chinese (Traditional))
這是帶點幽默和諷刺的英式習語，提醒別人不要對專家多說明顯的事。類似『班門弄斧』，不常用於正式場合。
Examples
Don't teach grandma how to suck eggs; Mrs. Lee has been baking for 40 years.
別**班門弄斧**了，李太太都烤了四十年餅了。
He tried to teach grandma how to suck eggs by showing the master mechanic how to use a wrench.
他試圖**班門弄斧**，教資深技師如何用扳手。
It's no use trying to teach grandma how to suck eggs—the coach knows all the tricks already.
不用**班門弄斧**，教練已經會所有竅門了。
Honestly, don't teach grandma how to suck eggs—my dad's been fixing cars since before you were born.
說真的，別**班門弄斧**，我爸修車比你還久。
You really shouldn't teach grandma how to suck eggs when talking to a professional chef.
和專業廚師說話時，你真的不應該**班門弄斧**。
Whenever someone tries to teach grandma how to suck eggs, it usually just makes them look silly.
通常有人**班門弄斧**，只會讓自己顯得很可笑。