商圈是指商业企业经营、服务辐射的有效空间、领域，分为核心商圈、次级商圈和边缘商圈。
Commercial sphere refers to the available space or field for enterprise management and service range, which includes core commercial sphere, subordinate sphere and marginal sphere.
比较企业的竞争力不能仅比较利润率等几个具体经济指标，而必须对企业经营的特定领域范围进行具体分析。
To compare the competitiveness of enterprises is not just to make comparison on some economic specifications but more importantly to analyze their specific business fields.
然而，与电脑编程或是企业经营相比，慈善却是完全不同的领域。
However, compared with computer programming or a business, charity is a completely different field.
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