mother lode
noun/ˈmʌðə ləʊd/
/ˈmʌðər ləʊd/
[usually singular]- a very rich source of gold, silver, etc. in a mine
主矿脉；母脉 - (especially North American English, figurative) Her own experiences have provided her with a mother lode of material for her songs.
她自身的经历为她的歌曲提供了取之不尽的素材。
- (especially North American English, figurative) Her own experiences have provided her with a mother lode of material for her songs.