Outsourcing has become the trend in business scope since 1990s.

自从90年代以来，外协已成为商业领域中的一大趋势。

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With the rapid development of the economy, shopping centers have emerged in major cities since 1990s of 20th century.

20世纪90年代以来，购物中心在中国各大城市兴起。

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This paper reviews and assesses the advance of knowledge- based system (KBS) application in urban planning since 1990s.

回顾和评价了1990年代以来，基于知识的系统在城市规划中应用的进展。

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"It's a curriculum that helped Singapore math students skyrocket to number one by the 1990s and that's where they've stayed ever since."

VOA: standard.2010.08.10

Since the 1990s, we've seen a proliferation of new kinds of mortgages that especially are offered to low-income people by certain lenders.

从20世纪90年代,我们看到一种新型抵押贷款在快速发展,它由特定贷款人向低收入人群发放

耶鲁公开课 - 金融市场课程节选

It has suddenly shot up in the latest years; this is since the late 1990s.

它在近几年突然上升,这是自90年代以来的数据

耶鲁公开课 - 金融市场课程节选

American manufacturers are hiring again and creating jobs for the first time since the 1990s.

WHITEHOUSE: Remarks by the President on American-Made Energy

Unemployment is rising and industrial production is at its lowest level since the 1990s.

BBC: Stalemate in 'ungovernable' Italy after elections

The Fandorin novels, a glamorous romp through tsarist Russia, have been best-sellers since the 1990s.

BBC: 'I'm no Havel' says campaigning Russian author Akunin