Their main job is to preserve health rather than treat illness.

他们的主要职责是保健而不是治病。

《柯林斯英汉双解大词典》

A spokesman for the Health Protection Agency said: "Antibiotics are a precious resource in fighting infections and one that we must do everything possible to preserve."

英国健康保护署发言人说：“抗生素是对付传染病的宝贵资源，是我们必须尽一切可能保存下来的资源。”

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Standing by his pledge to preserve the National Health Service from spending cuts, Mr Cameron told the BBC that this might sound a surprising policy from "a Conservative Party".

遵循在削减公共开支中，仍保留国民卫生保健机构的承诺，卡梅隆先生告诉BBC：这可能使“保守党”感到惊讶。

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With us tonight is club founder Valentina Janek, Jim Altamore, a construction worker who is also making money from his passion for singing, Robert Wu, who volunteered for months at the company that ultimately gave him a job, and Howie Sadowsky, salesman for Jared Jewelry, who took the job and a drastic pay cut to preserve health benefits for his family.

CNN: Transcript of June 'CNN Money Summit: Money & Main St.'

This can not only preserve your health and sanity, it can keep you from exceeding your limits and making mistakes that can hurt your career.

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But let me be absolutely clear: I will preserve these health care programs as a promise we make to each other in this society.

WHITEHOUSE: The Country We Believe In: Improving America��s Fiscal Future | The White House