The science of epigenetics looks at those molecular mechanisms, those intricate ways in which our DNA is literally shaped, genes turned on and off based on the exposures to the environment, to where we live and to where we work.
表观遗传学家观察了分子机制， ——我们的DNA逐一组合起来的 复杂的方式， 基因的激活和休眠， 是基于所暴露的环境， 基于我们生活和工作的地方。