名词
中文翻译：平方千米同义词
同义词：
['square kilometer', 'square mile']
例句：
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1. The city covers an area of 30 square kilometers.
这个城市占地30平方千米。
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2. The park is located in the center of the city, covering an area of 5 square kilometers.
公园位于市中心，占地5平方千米。
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3. The government has announced plans to expand the city's boundaries by 10 square kilometers.
政府宣布计划将城市的边界扩大10平方千米。