形容词
中文翻译：婴儿的
同义词：
['infantile', 'naiad', 'pediatric']
例句：
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1.The baby was so cute, it made everyone laugh.
那个宝宝太可爱了，大家都笑了。
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2. The child's infantile behavior has been a source of concern for the parents.
孩子的幼稚行为一直是父母的担忧。
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3.The scientist found evidence that supports the theory of infantile diseases.
科学家发现了支持先天性疾病理论的证据。