形容词
中文翻译：未开发的
同义词：
['untapped', 'uncultivated', 'underdeveloped例句：1. The region is still largely undeveloped', 'with little infrastructure.（该地区仍然大部分未开发，基础设施很少。）']
例句：
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1. The region is still largely undeveloped, with little infrastructure.
该地区仍然大部分未开发，基础设施很少。
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2.The company has been working on developing new technologies for years.
该公司已经努力开发新技术多年了。
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3. The undeveloped land in the area is a potential source of minerals.
该地区的未开发土地是一个潜在的矿物资源。