名词
中文翻译：Unknown
同义词：
['man-made terrain', 'man-made land', 'artificial plain', 'man-made flatland']
例句：
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1. The construction of the new highway has created a man-made plain.
新高速公路的建设创造了一个人工平原。
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2. The city's expansion has led to the creation of many man-made plains.
城市的扩张导致了许多人工平原的创造。
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3. The research team studied the effects of man-made plains on wildlife.
研究团队研究了人工平原对野生动物的影响。