第一、二章提供了公共供应和财政联邦主义的理论分析。
The first two chapters provided the theories of public provision and fiscal federalism.
公用水供应官员和消费者都需要共同保护安全的饮用水的公共供应。
Both public water supply officials and consumers need to protect the public supply of safe drinking water.
公共汽车出发前有啤酒和汽水供应。
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