名词核心小组; 干部会议; 决策委员会; 秘密会议

不及物动词（参加）干部开会议; 召开（参加）核心会议

1. (组织内部的)实力派，帮派，小集团
A caucus is a group of people within an organization who share similar aims and interests or who have a lot of influence.

e.g. ...the Black Caucus of minority congressmen.
少数派议员中的黑人集团

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noun

1. a closed political meeting