这些有机物提供了造成老化原因的最初线索，说明其中有多少归因于基因和先天生物，又有多少是其它变量的产物。
These organisms provided the first hints about how much of aging was due to genes and innate biology and how much was the product of other variables.
他的恶不仅仅是先天的动物性所致，更多的是后天生活环境的影响。
His fierce characteristic is not merely caused by congenital animal character bur mostly the influence of the living environment later.
先天生理条件是人的素质的自然物质基础，但作为人的素养和品质主要是后天教育和训练的结果。
Man's inborn physiology is the material nature of human quality which, being human accomplishment and quality, is the result of postnatal education and training.
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