Because with 32 countries now participating in low-carbon trading schemes around the world, we will one day need a single commodity price for carbon to unify these diverse national efforts.
因在全球范围内已有32国家参与了低碳交易计划，为统一这些不同国家的努力我们将在某一天需要一个单一的碳商品价格。
What a great temptation for me, even though I don't need these products, thinking about buying them in such low price, I feel the money deserves to be spent.
这对于我来说是多么大的诱惑啊，虽然我不需要这些产品，但是想到能以那么低的价格买下，我就觉得花钱很值得。
Cities across China are raising the price of water, in moves that try to balance the need to conserve an increasingly scarce resource with the effects on a public used to low fees.
中国的一些城市正在提高水价，希望此举既能保护日益稀缺的水资源，又不会对习惯于低收费的公众造成过大影响。
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