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Mr Rajan reckons that technological progress increased the relative demand for skilled workers.

Rajan先生认为，科技进步导致对熟练技工的需求相对上升。

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An employer can demand written certification that the relative is really ill.

雇主可要求书面证明以证实这位亲属确实病了。

《柯林斯英汉双解大词典》

His calculation assumes some increase in relative demand from abroad.

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First, the premium for skilled workers has been falling: a surge in secondary education has increased the supply of literate, reasonably well-schooled workers, and years of steady growth have raised relative demand for the less skilled in the formal workforce, whether as construction workers or cleaners.

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In a paper presented to the conference, they showed that those sectors and demographic groups that contributed most to the rise in unemployment in 2007-09 also contributed most to its decline in 2009-12, which suggests that shifts in relative demand for workers could not explain the high level of unemployment.

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