1N-UNCOUNT [usually with poss]生计;谋生之道;主要收入来源 Something that is the bread and butter of a person or organization is the activity or work that provides the main part of their income. 生计;谋生之道;主要收入来源
The mobile phone business was actually his bread and butter.
移动电话业务实际上是他的主业。
2ADJ [ADJ n]最基本的;影响到大多数人的Bread and butter issues or matters are ones which are important to most people, because they affect them personally. 最基本的;影响到大多数人的
The opposition gained support by concentrating on bread-and-butter matters.