名词
中文翻译：胚胎
同义词：
['embryo', 'blastocyst']
例句：
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1.The nucellar embryo is the first stage of a mammalian embryo.
卵黄囊胚是哺乳动物胚胎的第一个阶段。
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2. The nucellar embryo is critical for proper development.
卵黄囊胚对正常发育至关重要。
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3. During the early stages of development, the nucellar embryo undergoes several transformations.
在发展初期，卵黄囊胚经历了几次转变。