名词
中文翻译：距离
同义词：
['interval', 'gap', 'margin', 'interval between']
例句：
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1. The two countrieshave a long history of cultural exchanges.
这两个国家有着悠久的文化交流历史。
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2.The distance between the two cities is about 50 kilometers.
两座城市之间的距离大约是50公里。
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3. The scientist measured the distance between the stars using a telescope.
科学家使用望远镜测量了星星之间的距离。