灾难始于美国次级抵押借款违约，这是为扩大穷人拥有自有住宅而设计的金融工具。
The disaster began with defaults on American subprime mortgages, a financial instrument designed to spread home ownership among the poor.
灾难始于美国次级抵押借款违约，这是为扩大穷人拥有自有住宅而设计的金融工具。
The disaster began with defaults on American subprime mortgages, a financial instrument designed to spread home ownership among the poor.
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