闭联集

例句：

1. 1. The team has formed a close-knit community.
   这个团队已经形成了一个紧密的社区。
2. 2. The consortium of companies will announce the new product soon.
   这些公司的联盟将很快宣布新产品。
3. 3. They have joined forces to tackle the environmental issue.
   他们联合起来应对环境问题。