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A study of a given geographical location or particular demographic group; (in plural) the branch of knowledge relating to this.
1940s; earliest use found in Supply Responses in Milk Production.
雅致网英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。