brain trust
noun [ C ] US uk/ˈbreɪn ˌtrʌst/ us/ˈbreɪn ˌtrʌst/ (UK brains trust)
智囊团，顾问团，咨询团
a group of people who advise a leader
The candidate's brain trust is gathering this weekend to plan strategy for the primary election. 这个候选人的智囊团这个周末要碰头制定初选策略。
Compare: kitchen cabinet