这使它成为了应对全球变暖最廉价的方式，甚至还先于你考虑到了社会利益。
This makes it one of the least expensive ways to tackle global warming, even before you consider the social benefits.
这使它成为了应对全球变暖最廉价的方式，甚至还先于你考虑到了社会利益。
This makes it one of the least expensive ways to tackle global warming, even before you consider the social benefits.
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