After World War I, because it was impossible for the economies of the European industrial nations to recover, decreasing demand for American products, this caused the US to suffer a decade-long economic disaster.
在第一次世界大戰後，由於歐洲工業國家經濟力無法復原，導致對美國商品需求下降，連帶也使美國遭遇十年的經濟大恐慌。