现在最关键的就是人们对脑死亡概念的认识和接受了。

The key thing now is that people understand the concept of brain death and accepted it.

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第一部分通过对加缪思想渊源和生活轨迹进行分析，我们得以理解死亡概念在加缪思想中的展现以及为何他如此关注死亡。

Through the analysis of the source of Camus' thought and his living trail in the first chapter, we will understand the reflection of death in his thought and the reason of his focusing on this theme.

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总之，我们的儿子罗伯特在看到照片之前，就知道什么是心脏病发作了，甚至完全了解死亡的概念，并说过一些很有意思的话。

Anyway, before our son Robert had ever even saw a photo, knew what a heart attack was, or even fully understood the concept of death, he made some interesting remarks.

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Relative risk of death is an interesting concept from public health.

死亡相对危险度是个源于公共健康的概念

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选