This manual aims to improve the capacities of national and international procurement officers in the understanding of key quality elements and required documentation.

本手册旨在改善国家和国际采购人员的能力，使其理解关键性质量要素及所需文件。

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He tries to improve the quality of life. Even in the face of national and international difficulty, he does not see himself as helpless.

他尽力提高自己的生活水平，即使面对国内或国际困难，他也不会认为自己无能为力。

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It is currently urgent for some of our national brands, those who have made up their minds to compete against foreign brands, to improve the quality of their products.

因此，对于立志迎战洋品牌的民族品牌来说，当务之急就是提升自己的产品品质。

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It would also, without doubt, improve the quality of the English national team.

BBC: Jeremy Guscott Q&A

"This is the most ambitious, comprehensive and intentionally funded national initiative to improve health care quality in the world, " said Professor Sheila Leatherman.

BBC: NEWS | Health | NHS 'shows signs of improvement'

"Imagine if tomorrow you could announce a new energy plan that would in one stroke cut your constituent's gasoline bill in half, reduce our oil imports, improve our air quality, enhance national security, strengthen the dollar, reduce greenhouse gas emissions and create tens of thousands of new jobs in the U.S, " McClendon said.

FORBES: Natural Gas: Booming In The Beltway