遗传：基因在你的身体平衡热量和能量中扮演很重要的角色。
Genetics: Genes play a role in how your body balances calories and energy.
随着这些海洋细菌混入肠道，他们肯定与肠道细菌交换了遗传基因片段。
And as these ocean bacteria passed through the intestine, they exchanged bits of genetic code with the gut bacteria.
即使环境或是遗传基因的影响很强大的时候，他们也控制不了我们。
While environmental or genetic influences may be very powerful, they do not control us.
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