名词
中文翻译：成年婴儿
同义词：
['infant', "young child例句：1. The post mature infant is still learning to walk.（这个成年婴儿还在学习走路。）2. The baby's post mature infant period is crucial for its development.（婴儿的成长期对其发展至关重要。）"]
例句：
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1. The post mature infant is still learning to walk.
这个成年婴儿还在学习走路。
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2. The baby's post mature infant period is crucial for its development.
婴儿的成长期对其发展至关重要。
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3.The parents are worried about their post mature infant's health.
父母们担心他们的成年婴儿的健康。