bread and butter

• Распространённое выражение, обозначающее основной источник дохода человека, средства к существованию или самую базовую и важную часть чего-либо.

A common expression referring to a person's primary source of income, livelihood, or the most basic and essential part of something.

1. Basic livelihoodB2informal

   A person's main source of income or the essential means of living.

   Средства к существованию

   • Teaching is his bread and butter.
   • For many farmers, agriculture is their bread and butter.
   • She relies on freelance writing as her bread and butter.

2. Everyday stapleB2informal

   Something that is basic, ordinary, or fundamental in a particular context.

   Основа

   • Bread and butter issues like housing and healthcare affect everyone.
   • These simple tools are the bread and butter of any carpenter.
   • The restaurant's bread and butter dishes are its pasta and pizza.