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.
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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