报告指出，煤炭、石油、汽油以及用矿物燃料发出的电它们的市场价格不包括这种“隐性”成本，但是，终究要有人为他们支付代价。
These costs aren't factored into the market prices of coal, oil, and gasoline, or the prices of electricity generated by fossil fuels, the report says. But someone eventually pays for them.
一个折衷的例子就是性能价格比：添加更多的问题处理能力会增加性能，但是要以成本为代价。
An example of a tradeoff is between cost and performance: throwing more processing power at the problem will improve performance, but at a cost.
虽然燃烧化石燃料和生物燃料的'隐藏'成本没有被计入它们的市场价格，但总得有人为它们付出代价。
The 'hidden' costs of burning fossil fuels and biofuels aren't factored into their market prices, but someone has to pay them.
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