很少人老人提到2个对他们长寿影响最大的原因：运气和遗传。
Few of the very old mention the two biggest influences on their long lives: luck and genetics.
总体来说，癌症是不好的运气、糟糕的环境和不良的遗传基因的综合作用产生的结果。
Cancer is in general a combination of bad luck, bad environment and bad inherited genes.
总体来说，癌症是不好的运气、糟糕的环境和不良的遗传基因的综合作用产生的结果。
Cancer is in general a combination of bad luck, bad environment and bad inherited genes.
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