形容词
中文翻译：婴儿的
同义词：
['infantile', "pediatric例句：1. The baby's behavior was infantile", 'showing signs of immaturity.（这个婴儿的行为是幼稚的，显示出不成熟的迹象。）']
例句：
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1. The baby's behavior was infantile, showing signs of immaturity.
这个婴儿的行为是幼稚的，显示出不成熟的迹象。
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2. The child's infantile curiosity led him to explore the world around him.
孩子的幼稚好奇心引领他探索周围的世界。
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3. Infantile diseases are often misdiagnosed and require special care.
婴儿期的疾病常常被误诊，需要特别的照顾。