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Measuring knowledge worker productivity is hard at the best of times
很多时候，要度量知识工作者的工作效率是很困难的。
youdao
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Worker productivity grew at an annual rate of 2.2 percent.
生产率年增长2.2%。
youdao
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Worker productivity grew at an annual rate of 2.2 percent.
生产率年增长2.2%。
youdao