failed state
noun [ C ] uk/ˌfeɪld ˈsteɪt/ us/ˌfeɪld ˈsteɪt/
失败国家（被认为未能满足和履行某一些作为主权政府应有的基本条件和责任的国家）
a country whose government is considered to have failed at some of its basic responsibilities, for example keeping the legal system working correctly, and providing public services (= electricity, water, education, hospitals, etc.)
Failed states are increasingly trapped in a cycle of poverty and violence. 失败国家越来越深地陷入贫困与暴力的泥潭之中。