形容词
中文翻译：未被记录的
同义词：
['unexplored', 'unsettled', 'untouched']
例句：
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1.The expedition to the South Pole was unchartered territory for many of the scientists.
对许多科学家来说，南极探险是一片未被探索的领域。
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2. The unchartered waters of the ocean were filled with mystery and danger.
海洋的未知水域充满了神秘和危险。
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3. The unchartered islands off the coast of New Zealand are home to a unique species of seabird.
新西兰海岸外的未被勘察岛屿是一群独特海鸟的家园。