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watersheds的英文翻译是什么意思，词典释义与在线翻译：
英英释义
名词 watershed:
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a ridge of land that separates two adjacent river systems
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the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet
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an event marking a unique or important historical change of course or one on which important developments depend
