名词
中文翻译：边疆开拓者
同义词：
['border explorer', 'frontier pioneer']
例句：
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1.He is a frontiersman who has explored the uncharted territories of the Arctic.
他是一位探险家，曾探索过北极的未知领域。
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2.The frontiersman was responsible for mapping the new land.
这位边疆开拓者负责绘制这片新土地的地图。
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3.The frontiersman's journey was filled with challenges and triumphs.
这位边疆开拓者的旅程充满了挑战和胜利。