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来源:雅诚德英语网
The amount of carbon dioxide released by human activities such as burning coal and oil is small in comparison.
相比之下人类燃烧煤、石油等活动所释放的二氧化碳的量是少的。
The amount of carbon dioxide released by human activities such as burning coal and oil is small in comparison.
相比之下人类燃烧煤、石油等活动所释放的二氧化碳的量是少的。