A country cannot become strong and prosperous if it does not make education universal and improve its quality.

不普及和提高教育，国家不可能强盛。

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The present study can be applied to optimize the processing technology of jujube juice and improve its quality.

该研究为优化红枣汁的加工工艺、提高红枣汁的品质提供理论依据。

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Hence it is very important to strengthen the management of the quality of statistical data and improve its quality.

因而加强统计数据质量的管理，提高统计数据质量是极为重要的。

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A spokeswoman for the mayor's office, Joanna Dovan,says the Pittsburgh area has been working to improve its air quality.

VOA: special.2009.07.13

Henderson,appearing on NBC, said General Motors is building a plan around four core brands and hopes to improve the quality of its vehicles to regain the confidence of the American consumer.

VOA: standard.2009.04.05

It will lower the cost of health care by billions and improve its quality.

WHITEHOUSE: THE WHITE HOUSE

Li had been looking for a way to hasten his young company's technology development and improve its quality and image.

FORBES

We've dramatically expanded early childhood education and will continue to improve its quality, because we know that the most formative learning comes in those first years of life.

CNN: Obama speech to Congress focuses on economy