美国出口商不需要担心货币不匹配的问题，因为他们的国内成本和出口收入都是用美元来支付。

American exporters do not have to worry about currency mismatch because both their domestic costs and their export earnings are in dollars.

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然而，营运成本和广告收入之间却存在着巨大的不匹配。

There is, however, a huge mismatch between operating costs and advertising revenues.

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