During the past generation, the American middle-class family that once could count on hard work and fair play to keep itself financially secure had been transformed by economic risk and new realties.

• 在过去的十几年里，美国那些曾经可以依靠辛勤劳动和公平竞争以维持其收入稳定的中产阶层家庭被经济风险和新现实改变了。