形容词
中文翻译：婴儿的
同义词：
['infantile', 'pediatric', 'juvenile']
例句：
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1.The baby's infantile behavior is quite adorable.
这个婴儿的行为非常可爱。
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2.The pediatrician advised the parents to monitor their child's growth closely.
儿科医生建议父母密切监控孩子的生长发育。
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3.Juvenile delinquency has become a major social issue in many countries.
青少年犯罪已成为许多国家的主要社会问题。