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A person working at a new frontier; specifically a proponent of President Kennedy's New Frontier programme.
1920s; earliest use found in Science. From new + frontiersman, variant of frontierman, after new frontier.
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。