当然，这两个人投入了大量时间来经营生意，但使商业起步的边际成本接近于零。

Of course, the two had poured significant time into the business, but the marginal cost of getting the business off the ground was close to zero.

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高科技企业科技要素投入的边际递增性和边际成本趋于零；

The margin income and margin cost of technology element are zero;

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高科技企业科技要素投入的边际递增性和边际成本趋于零；

The margin income and margin cost of technology element are zero;

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