Throughout history, the family has been a vital unit for survival.

有史以来，家底就一直是一个生存的重要单元。

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Article 8 the State protects wildlife and the environment for its survival, and prohibits the illegal hunting, catching or destruction of wildlife by any unit or individual.

第八条国家保护野生动物及其生存环境，禁止任何单位和个人非法猎捕或者破坏。

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Article 8. The state shall protect wildlife and the environment for its survival, and shall prohibit the illegal hunting, catching or destruction of wildlife by any unit or individual.

第八条国家保护野生动物及其生存环境，禁止任何单位和个人非法猎捕或者破坏。

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Fat has twice the calories per unit weight that protein or carbohydrate sugar has, as a consequence, has the greatest survival value.

单位重量中脂肪的热量含量,是蛋白质和碳水化合物的两倍,因此,脂肪才是最能维持生存的物质

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The research team, led by Mark Petticrew of the Medical Research Council's Social and Public Health Sciences Unit in Glasgow, said a link between the way people cope with cancer and their chance of survival was "biologically plausible".

BBC: Attitude 'irrelevant' to cancer fight