名词
中文翻译：永久河流
同义词：
['eternal stream', 'perennial stream']
例句：
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1.The permanent stream runs through the forest, providing a natural habitat for wildlife.
这条永久河流穿过森林，为野生动物提供了自然栖息地。
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2. The river is a symbol of the region's rich history and culture.
这条河是该地区丰富历史和文化的象征。
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3.The permanent stream has been a source of life for centuries, nourishing the land and supporting the ecosystem.
这条永久河流数百年来一直是生命之源，滋养着土地并支持着生态系统。