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单词 the frontier
释义 the frontier the frontier  → the frontier at frontier(1) an area where people have never lived before, that not much is known about, especially in the western US before the 20th centurythe frontier  
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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。

　

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更新时间：2026/10/8 7:09:20