Product/market fit means that the cost of acquiring a new customer is less than the marginal profit we make from that customer.

那么当产品切合市场需求，意味着获得一位新客的成本少于从该新客赚取的边际利润。

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If the marginal value that a customer receives for increased reliability is less than the marginal cost required to increase reliability for that customer, then a systemwide relocation of lines would likely lead to wasted resources.

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We currently expect its Chinese customer base to show only a marginal decline in the next couple of years, and its international revenues to grow at a steady rate, supported by new game launches.

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Remember, the marginal cost to a network of either a new customer or more data for an existing one is essentially zero.

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