标题（Title） 一般不超过80个字符
SOURCE | Johns Hopkins | Bloomberg School of Public Health
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关键词（KeyWords）一般不超过100个字符
bloomberg school of public health, johns hopkins university, departments, academics, research, centers, admissions
（114 个字符）
描述（Description）一般不超过200个字符
SOURCE is the community engagement and service-learning center for the Johns Hopkins University (JHU) Schools of Public Health,
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