Drinking can harm a developing fetus, putting a baby at risk for birth defects and mental problems.
饮酒会伤害腹中发育中的胎儿，可能会带来先天缺陷和精神问题。
Late in the pregnancy, the fetus pushes up against the thoracic cage and decreases a woman's lung capacity, putting her at risk for respiratory complications if she contracts flu.
在怀孕后期，胎儿推挤胸廓，导致孕妇肺活量减少，这样当她感染流感后，就面临着呼吸并发症的风险。
New technology that measures oxygen levels in the blood of a fetus was thought to offer a better way to tell which babies were truly at risk.
人们认为，监测胎儿血氧水平这种新技术，可以更准确地表明哪个胎儿真正有危险。
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