名词
中文翻译：Unknown
同义词：
['birth', 'childbirth', 'labor', 'delivery']
例句：
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1. Mammalian species often have a distinct birth process.
哺乳动物种类通常有独特的分娩过程。
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2. The midwife performed the childbirth with great skill.
助产士以高超的技巧完成了分娩。
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3. Labor and delivery are essential stages in the human life cycle.
劳动和分娩是人类生命历程中不可或缺的阶段。