有些科学家有预感，认为孕妇的饮食和她接触的各种化学物质会开启一些胎儿基因，而关闭其他基因。
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.
他们相信孕妇饮食不均衡，从长期来说，将危及孩子的基因功能。
They believe an imbalanced diet in the expectant mother can compromise the long-term functioning of a gene in the child.
根据2005年英国婴儿饮食调查，34%的孕妇在怀孕期间戒酒，61%的孕妇减少饮酒量，只有4%的孕妇坚持她们的饮酒习惯。
According to the UK infant feeding survey 2005, 34% of women give up drinking while they are pregnant and 61% drink less. Just 4% do not change their drinking pattern.
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