a. of or relating to a fraternity or society of usually men
a. (of twins) derived from two separate fertilized ova
a. 兄弟的, 兄弟似的, 友爱的
1. The fraternity at the university promotes fraternal bonds among its members.
大学的兄弟会促进了成员之间的兄弟情谊。
2. They have a fraternal relationship that has lasted for many years.
他们之间的兄弟关系已经持续了很多年。
3. Fraternal organizations often engage in community service and charitable activities.
兄弟组织通常参与社区服务和慈善活动。