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来源:雅诚德英语网
That's about half as much as humans have already added through burning fossil fuels over the last 200 years.
这相当于过去200年来人类燃烧化石燃料产生的碳量的一半。
That's about half as much as humans have already added through burning fossil fuels over the last 200 years.
这相当于过去200年来人类燃烧化石燃料产生的碳量的一半。