teach your grandmother to suck eggs
US /tiːtʃ jʊər ˈɡrændˌmʌðər tə sʌk ɛɡz/
UK /tiːtʃ jʊər ˈɡrændˌmʌðər tə sʌk ɛɡz/
1.
mengajari nenek mengisap telur, mengajari orang yang lebih berpengalaman
to try to teach someone something they already know, especially someone who is more experienced than you
:
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I tried to explain how to use the new software to my boss, but it was like teaching my grandmother to suck eggs; she's been using similar programs for decades.
Saya mencoba menjelaskan cara menggunakan perangkat lunak baru kepada bos saya, tetapi itu seperti mengajari nenek saya mengisap telur; dia sudah menggunakan program serupa selama puluhan tahun.
•
He started giving me advice on cooking, but I've been a chef for twenty years. It was definitely a case of teaching your grandmother to suck eggs.
Dia mulai memberi saya nasihat tentang memasak, padahal saya sudah menjadi koki selama dua puluh tahun. Itu jelas kasus mengajari nenek saya mengisap telur.