名词
中文翻译：地下流
同义词：
['subterranean flow', 'underground circulation']
例句：
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1. The underground flow is responsible for the water cycle in the region.
地下流负责该地区的水循环。
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2. The underground flow is essential for the survival of the plant.
地下流对植物的生存至关重要。
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3.The underground flow was discovered during a geological survey.
在一次地质调查中发现了地下流。