到威尔逊离开通用汽车的时候，美国几乎一半的家庭都达到了中等收入水平，而多数一家之主并非专业人士或高管，而是技能娴熟和半熟练的工厂工人。

By the time Wilson left GM, almost half of all US families fell within the middle range of income. Most were headed not by professionals or executives but by skilled and semi-skilled factory workers.

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