triumvirate /traɪˈʌmvɪrɪt/

• 1. 

  N-SING-COLL A triumvirate is a group of three people who work together, especially when they are in charge of something. (尤指负责某事的)三人工作组 [正式] [oft N 'of' n]

  例：

  ...the triumvirate of women who worked together on the TV dramatization of the novel.

  ...合作将这部小说搬上电视荧屏的三位女负责人。