Our bodies have a built-in survival mechanism to conserve calories when we go for a long period of time without eating.

当我们长时间不进食，我们身体有个内在的生存机制会保存热量。

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Objective to evaluate the main treatment methods and safety for long-time survival patients of glioblastoma.

目的探讨脑恶性胶质瘤长期生存患者的主要治疗方法和安全性。

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Especially, the immunological rejection of lung transplantation is all the time the key point of long term survival of lung transplantation patients.

尤其是肺移植术后免疫排斥反应始终是影响着肺移植患者长期存活的关键。

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Besides the actual performance, they look at how long it takes the soldiers to complete their tasks, since time can make the difference between survival or death for those who are lucky enough to be alive after the nuclear blast.

VOA: standard.2010.07.21

Since some CML patients live a long time, testing for survival would be difficult.

FORBES: Cancer Vaccine Finds A Proving Ground

Operators know that rapidly converging the processes of policy control and real-time charging is critical for their long-term survival.

FORBES: Alternatives To Imposing Caps On Mobile Data Plans

That has led, over a long period of time, to far better cure and survival rates for cancer, for heart disease, than we have in Britain and ultimately we have to not worry so much about the system as do we actually give people in Britain the health care we deserve, and that's what I want to see.

BBC: News | BREAKFAST WITH FROST | Interview with shadow health secretary Liam Fox