back-room boys

美 [ˈbæk ruːm bɔɪz]英 [ˈbæk ruːm bɔɪz]
  • n.默默无闻地从事重要工作的人;无名功臣
back-room boysback-room boys

noun

pl.默默无闻地从事重要工作的人;无名功臣
people who do important work for a person or an organization but who are not well known themselves