有科学家有预感，怀孕的妇女的饮食和对各种化学物质的接触会打开一些致命的基因而关闭其他一些基因。
Some scientists have a hunch that a pregnant woman’s diet and her exposure to various chemicals turn on some fetal genes and turn off others.
有科学家有预感，怀孕的妇女的饮食和对各种化学物质的接触会打开一些致命的基因而关闭其他一些基因。
Some scientists have a hunch that a pregnant woman’s diet and her exposure to various chemicals turn on some fetal genes and turn off others.
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