官僚圈子

例句：

1. 1. The officials in the bureaucracy are all part of this tight-knit circle.
   这个官僚机构里的官员都是这个紧密的圈子的一部分。
2. 2.He was a member of the influential political circle that shaped the country's policies.
   他是那个影响国家政策的有影响力的政治圈子的成员。
3. 3.The company's top executives are part of a tightly-knit group, known for their collaborative efforts.
   公司的高级执行人员是一群紧密合作的群体，以他们的协作努力而闻名。