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But over the past five years or so there has been a marked improvement.

但在过去五年左右的时间里，这一问题有了明显改善。

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After five hours the volunteers had another go at the maze; this time, those who napped showed signs of improvement.

五个小时后，志愿者再走迷宫，这一次，午睡了的志愿者显示出提高的迹象。

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Pillay says he has seen significant improvement and is sure the target of five percent transmission rate will be reached.

VOA: standard.2010.07.01

Generally, however, the IRS agreed with the IG's five recommendations for improvement--including making sure that the IRS employee authorizing each refund is listed in electronic records.

FORBES: Informer

Nearly every major credit card issuer has posted five straight months of improvement in their late payment figures.

FORBES: Credit Card Debt and Delinquencies Fall Again

On Tuesday, OAO Severstal went in for the kill, boasting a "highly credible restructuring plan designed to derive maximum value from Esmark, including a five-year capital improvement plan that carries the full support of the United Steelworkers, " the Russian company said.

FORBES: Magazine Article