三大经济地带 Three Economic Regions
三大经济圈 three economic circles
三大经济区 three economy area ; three major economic zones
第三大经济体 third-largest economy
三大经济板块 Three Economic Plates
三大经济组织 three economic organizations
三大经济区域 he three big economic zones
大珠三角经济区 Great-PRD Economic Zone
大三峡旅游经济圈 the Big Three Gorges Tourism and Economy Circle
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