The percentage of retirement-age people in the labor force has doubled over the past three decades.
过去三十年来，退休年龄人口在劳动力中的比例翻了一番。
Over the next 10 years, maybe 2 to 3 million net new workers coming to the labor force now each year, compared to 5, 10 million in the next decade.
在未来十年，新加入劳动行业的工人也许每年会有 2 到 3 万的纯收入，而下一个十年则会达到 5 10 万。
They also replenish-and help fund benefits for-an aging American labor force that will retire in huge Numbers over the next few decades.
他们也为老龄化的美国劳动力结构进行劳动力补充和积累，这种结构将会在未来十年使得大量的劳动力得以退休。
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