Reducing the amount of sleep students get at night has a direct impact on their performance at school during the day.

减少学生晚上的睡眠时间会直接影响他们白天在学校的表现。

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Some of the compounds in the oil evaporate, reducing their impact on the environment.

漏油中的一些化合物蒸发能够降低对环境的影响。

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The provision of safe water and sanitation is a formidable challenge but remains the critical factor in reducing the impact of cholera.

提供安全饮用水并做到环境卫生是一项艰巨挑战，但仍然是减少霍乱影响的关键因素。

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Diversifying the economy,he says, would also help the country produce more and buy less, reducing the impact of the sinking value of Yemeni money.

VOA: standard.2010.04.20

"This is having an impact on their health. It is also reducing our ability to bring other kinds of assistance, such as vaccination campaigns against polio,"

VOA: standard.2009.08.07

The partnership has identified general aims such as reducing the impact of drug and alcohol abuse on the community and reducing reoffending.

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The sand helps sea defences by reducing the impact of the waves on the promenade.

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Staff at Bloomberg ranked banks in two key environmental areas: making clean-energy investments and reducing environmental impact.

FORBES: Written by Melissa Hincha-Ownby