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目前，四方会还没有盈利，公司还在开发商业模型。
So far, Foursquare has no revenue, and the company is still developing its business model.
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第四章垄断规模结构与盈利性模型。
Chapter Four Monopoly size structure and gains model.
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第四章垄断规模结构与盈利性模型。
Chapter Four Monopoly size structure and gains model.
youdao