WHO estimates the global health worker shortfall to be over 4.2 million.

世卫组织预计全球卫生工作者短缺超过420万名。

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The real wage of the average worker has increased by a factor of over ten in the last 70 years.

近70年来工人的实际工资平均增长超过了十倍。

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The researchers found that, over that period, employers have increasingly implemented measures that they feel will improve worker productivity and profits.

研究人员发现，在过去那段时间里，雇主一直在制定很多措施，他们认为这将会提高工人的工作效率并增加利润。

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Why would a company invest in a potentially over-qualified aging worker?

FORBES: New Evidence That Retirement Is A Thing Of The Past

He shouted over to a co-worker who was busy showing the line to an out-of-town buyer.

WSJ: On the Scent of a Hit

Using a feature called Nextel Direct Connect, a user can link up with a friend, family member or co-worker over a link that allows only one of them to speak at a time.

FORBES: Magazine Article