grand·moth·er
noun/ˈɡrænmʌðə(r)/
/ˈɡrænmʌðər/
Idioms - the mother of your father or mother
（外）祖母；奶奶；姥姥；外婆 - I always loved going to visit my grandmother.
我总是喜欢去看望我的祖母。
- I always loved going to visit my grandmother.
Idioms
teach your grandmother to suck eggs
- (British English, informal) to tell or show somebody how to do something that they can already do well, and probably better than you can
教奶奶嘬鸡蛋；在能人面前逞强；班门弄斧