league
/lig/
an association of sports teams that organizes matches for its members
中文释义：联盟；联赛
The football league consists of 20 teams competing for the championship.
该足球联赛由20支争夺冠军的球队组成。
Several countries formed a league to promote free trade.
几个国家组成联盟以促进自由贸易。