名词短语
中文翻译：产后保留
同义词：
['postpartum retention']
例句：
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1.The study found that the retention of afterbirth is associated with a higher risk of postpartum depression.
研究发现，产后保留与产后抑郁症的风险有关。
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2. The doctor advised her to keep the baby in the hospital for a few days to ensure proper retention of afterbirth.
医生建议她将宝宝留在医院几天，以确保产后保留得当。
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3. The mother was relieved to know that she had retained all her afterbirth, which helped herrecover quickly.
母亲很高兴知道她保留了所有的产后保留，这有助于她迅速康复。