Miller博士一开始就认为音乐具有人类普遍的特点、从制作所花去的时间和精力来说，音乐代价高昂，并且，从某个方面看，受到基因控制。

Dr Miller starts with the observations that music is a human universal, that it is costly in terms of time and energy to produce, and that it is, at least in some sense, under genetic control.

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胆固醇水平受到各种因素的影响，涉及面从年龄到基因，任何一个部分都不占控制权。

Cholesterol levels are influenced by a number of factors, from age to genes, some of which cannot be controlled at all.

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由于双胞胎拥有相同的基因，但可能受到的环境因素的影响不同，因此研究双胞胎可以“对基因易感性加以控制。”

Because twins share genes, but may have different exposures to environmental factors, studying twins allows an, "opportunity to control for genetic susceptibility."

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