Traditional trade area theory is an effective tool to study business enterprises, especially to study the coverage of retail enterprises.

传统商圈理论对于研究商业企业，特别是研究零售商业企业销售辐射范围是一种有效的工具。

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With China's entry into WTO, the retail business, an important part of service trade, is being greatly challenged by foreign capitals.

随着我国加入WTO，零售业作为服务业的重要领域，必将受到国外资本的较大冲击。

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With China's entry into WTO, the retail business, an important part of service trade, is being greatly challenged by foreign capitals.

随着我国加入WTO，零售业作为服务业的重要领域，必将受到国外资本的较大冲击。

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