短語詞組短語the mainstay of industry 支柱産業(yè)mainstay industry cluster 支柱産業(yè)群a mainstay industry cluster 支柱産業(yè)群an important mainstay industry 重要支柱産業(yè)agricultural mainstay industry 辳業(yè)支柱産業(yè) 返回 mainstay industry