名词
中文翻译：羊膜膜
同义词：
['fetal membrane', 'amniotic sac']
例句：
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1. The amniotic membrane is theprotective layer that surrounds the fetusduring pregnancy.
羊膜膜是孕妇怀孕时包围胎儿的保护层。
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2. Amniotic membranes are responsiblefor filtering and cleaning theamniotic fluid.
羊膜膜负责过滤和清洁羊水。
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3. During labor,the amniotic membrane can rupture, allowing the baby to be born.
在分娩过程中，羊膜膜可能会破裂，使婴儿能够出生。