源流

yuánliú

source and course (of a river, etc.); origin and development

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headstream

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headstream

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yuan2 liu2

(of watercourses) source and direction of flow, origin and development

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源流

yuán liú

filiation; source and course; origin and development

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源流|源流 [yuán liú] ► (of watercourses) source and direction of flow ► origin and development