bread and butter

bread and butter
noun
  1. [mass noun]a person's livelihood or main source of income, typically as earned by routine work
    谋生之道,生计;主要的收入来源
    their bread and butter is reporting local events.
    他们靠报导当地新闻谋生。
    [as modifier]bread-and-butter occupations.
    赖以谋生的职业。
    ■an everyday or ordinary person or thing
    平凡的人(或事)
    the bread and butter of non-League soccer.
    普通的业余足球运动员。
英语宝典
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