Bank runs are never the sole cause of an economic collapse, but they're almost always a component of economic downturn.

银行挤兑从来都不是经济崩溃的唯一原因，但其几乎一直是经济衰退的一个组成部分。

The vain hopes of gaining some of the great prizes is the sole cause of this demand.

获得一些大奖的虚荣希望是这种需求的唯一原因。

It points the finger at the capitalist market system as the sole cause of stratification, ignoring the role that things like culture and political regimes play in impoverishing countries.

它指责资本主义市场体系是分层的唯一原因，而忽视了文化和政治制度等因素在贫困国家中所起的作用。