Chinese : 两种主要的燃烧产物是水蒸气和二氧化碳。 English : The two principal combustion products are water vapor and carbon dioxide.
Chinese : 碳化合物氧化后必然会产生二氧化碳。 English : Carbon dioxide is a necessary result of the oxidation of carbon compounds.
Chinese : 相比之下，人类活动燃烧煤、石油等所释放的二氧化碳要少一些。 English : The amount of carbon dioxide released by human activities such as burning coal and oil is small in comparison