美利坚合众国由民主制度治理。

The United States of America is ___governed by a democratic system.

地方议会应该由代表社区利益的人来治理。

A local council should be ___governed by people who represent the interests of the community.

新政策旨在更好地治理我们快速发展的城市经济。

The new policy aims to better ___govern our rapidly growing urban economy.