fraternity|fraternities

他在大学里加入了一个兄弟会，结识了很多朋友。

He made many friends after joining a ___fraternity at college.

工程师联谊会经常组织技术交流活动。

The engineering ___fraternities often organize technical exchange events.

法律界的同行们经常在这个俱乐部聚会交流。

Members of the legal ___fraternity often meet at this club to network.