政治家的私生活与他们的公众角色没有相关性。

Politicians' private lives have no relevance to their public roles.

《柯林斯英汉双解大词典》

被科学家称之为“和微笑有关的生活质量”与一个人的牙齿状况之间，存在明显的统计相关性。

There is a significant statistical correlation between what the scientists call "smile-related quality of life" and the state of one's teeth.

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方法分析71例COPD患者治疗前后生活质量评分与肺功能分级的相关性。

Method To analyze the correlation between life quality score and fractionation of lung function in 71 patients with COPD before and after the treatment.

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