名词
中文翻译：影子区域
同义词：
['shade area', 'shadow zone']
例句：
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1.The city is divided into several shadow regions by the river.
这个城市被河流分成了几个影子区域。
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2.The scientists are working on a project that involves mapping out the shadow regions of the planet.
科学家们正在研究一个项目，这个项目涉及到绘制出星球的阴影区域。
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3.The shadow regions are often less populated and more remote than their brighter neighbors.
阴影区域通常人口较少，且比其明亮的邻居更偏远。