根据美国食品药品管理局（FDA）的妊娠期用药安全评级系统（共五级，link），绝大多数精神病类药物对胎儿存在潜在危险。
According to the FDA's letter-grade system for drug safety during pregnancy, most psychotropic drugs pose a potential risk to the fetus.
在整个妊娠期，母亲流感对胎儿的危险是同样严重的。
The risk of maternal influenza to the fetus is the same throughout pregnancy.
一位研究人员指出，你在亲吻爱人时多半会把头转向右侧，这是一种胎儿期偏好的影响。
When you kiss your sweetheart you may well turn your head to the right, echoing a preference born in the womb, a researcher suggests.
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