A: Is the policy decided by a single leader?
A：这项政策是由一位领导者决定的吗？

B: No, it is managed by a troika.
B：不，是由一个三人小组管理的。

1) 三人小组

2) 三马马车

3) 三方权力机构

1. 三人小组，三人权力集团

noun

1. A group of three people or things, especially a group of three people who share power.

Synonym: triumvirate