名词
中文翻译：主要排水盆地
同义词：
['major river basin', 'major watershed', 'major hydrographic region']
例句：
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1. The major drainage basin is home to a variety of wildlife.
这个主要排水盆地是各种野生动物的家园。
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2. The construction of the new dam will have a significant impact on the major drainage basin.
新大坝的建设将对主要排水盆地产生重大影响。
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3. The major drainage basin is prone to flooding during heavy rainfall.
主要排水盆地在大雨期间容易发生洪水。