The ruin of a country and the extinction of its ruling family or lineage; total destruction and collapse.
历史的教训告诉我们，若内部矛盾重重，外部危机四伏，任何一个强大的群体都有可能走向破国亡宗的结局。
Historical lessons tell us that if internal conflicts are numerous and external crises abound, any powerful collective could face the tragic end of a ruined state and an extinguished lineage.
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