名词
中文翻译：分水岭
同义词：
['tributary', 'tributary', 'confluence例句：1. The river empties into the sea at a tributary stream.（这条河在一条分水道上流入大海。）']
例句：
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1. The river empties into the sea at a tributary stream.
这条河在一条分水道上流入大海。
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2. The tributary stream is a small but important part of the larger river system.
这条分水道是较大河流系统中一个较小但重要的部分。
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3. The tributary stream provides fresh water for the surrounding farmland.
这条分水道为周围的农田提供淡水资源。