名词短语
中文翻译：Unknown
同义词：
['unused land', 'undeveloped land', 'barren land']
例句：
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1. The old farmland has been filled up with new houses.
这片旧农场已经被新房子填满了。
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2. The city is full of unused land that could be developed into parks.
这座城市充满了未开发的空地，可以开发成公园。
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3. The barren land was once a thriving agricultural region.
这片荒凉的土地曾经是一个繁荣的农业区。