to fall out with one's bread and butter
01
生活の糧と揉める, 飯の種と仲違いする
to have a disagreement with someone or something that provides one's primary source of income or livelihood
idiom
例
They've been fighting a lot lately, and she's worried she'll fall out with her bread and butter.
一件の取引がうまくいかなかっただけで、生活の糧と揉めてはいけない。



























