matriarchy

这个部落实行母系制度，所有重要决定都由女族长作出。

In this tribe's ___matriarchy, all major decisions are made by the female leader.

这个部落实行母系社会制度，女性掌控着土地和资源的分配权。

This tribe follows a ___matriarchy where women control land allocation and resource distribution.