现在，为一顿饭这样普通的事物拍无数张照片的唯一明显成本，就是你硬盘上的空间和与你用餐的同伴的耐性。

Now, the only apparent cost of taking infinite photos of something as common as a meal is the space on your hard drive and your dining companion's patience.

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似乎这种不计成本的付出与分享在节假日更为明显，那时所有人心中都充满了善意。

It appears that this willingness to give and share without calculating the cost becomes most evident around the holiday season when a spirit of goodwill stretches deep into the hearts of all people.

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例如，从西班牙运输西红柿到英国的碳成本明显比在英国生产西红柿的碳成本要低，后者需要额外的加热和照明。

It is clear, for example, that the carbon cost of transporting tomatoes from Spain to the UK is less than that of producing them in the UK with additional heating and lighting.

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Now, who here wants to defend cost-benefit analysis from this apparent counter example?

现在，就这个明显的反例,有谁想为成本效益分析辩护？

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