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- Some scientists believe that plants inhale oxygen at night and give off carbon dioxide. 一些科学家认为植物夜间吸入氧气而释放二氧化碳。
- The lignin does give off carbon dioxide when burned, but growing new corn or switchgrass consumes gases. 燃烧木质素不会增加二氧化碳的排放量，但再种植玉米或柳枝稷必须消耗天然气。
- But when we work soil intensively and use chemical fertilizers, all that organic stuff breaks down quickly and gives off carbon dioxide that collects in the atmosphere. 但是当我们过渡使用土地，使用化学肥料，所有的有机物都会很快分解然后释放出二氧化碳，聚集在大气层中。
- As motor vehicles burn fuel, they give off carbon monoxide as a waste. 在汽车燃烧燃料时,产生废气一氧化碳。
- We can split off carbon dioxide. 我们可以用分解法去除二氧化碳。
- give off carbon dioxide 呼出二氧化碳
- "In respiration, it is taken up by animals and some Bacteria (and by plants in the dark), which give off carbon dioxide (CO2). In photosynthesis, green plants assimilate carbon dioxide in the presence of sunlight and give off oxygen." 动物和低级植物呼吸时,从大气吸入氧气,呼出二氧化碳。高级(即绿色)植物则在阳光下通过光合作用吸收二氧化碳并放出氧气。
- In photosynthesis, green plants assimilate carbon dioxide in the presence of sunlight and give off oxygen. 高级(即绿色)植物则在阳光下通过光合作用吸收二氧化碳并放出氧气。
- In Shanghai, some of the public buses begin to run on natural gas, which does not give off as much carbon dioxide as the petrol. 在上海，一些公共汽车开始用天然气油作为行驶的原料，另一个方法是把碳和二氧化物作为汽油来使用。
- Largerpeople tend to give off more carbon dioxide, which is why mosquitoestypically prefer munching on adults to small children. 大人往往呼出更多二氧化碳，这是为什么蚊子一般喜欢咬成人超过咬小孩。
- As motor vehicles burn fuel, they give off carbon monoxideas a waste. 在汽车燃烧燃料时,产生废气?一氧化碳。
- "Greenery can absorb indoor and harmful gas, especially carbon dioxide, give off oxygen, can make the air in the home more pure and fresh and clean. “绿色植物能吸收室内有害气体，非凡是二氧化碳，并放出氧气，能使家里空气更清新洁净。”
- Soft drinks contain carbon dioxide. 软饮料中含有二氧化碳。
- Plants can absorb carbon dioxide and release oxygen. 植物可以吸收二氧化碳释放氧气。
- Coke burns with oxygen to give carbon dioxide. 焦碳用氧气燃烧，产生二氧化碳。
- These rotting bananas are giving off a bad smell. 这些腐烂的香蕉发出难闻的气味。
- The flowers gave off a fragrant odor. 花发出一阵幽香。
- When wine is fermented it gives off bubbles of gas. 酒发酵时会放出气泡。
- These gas lasers give off a continuous beam. 这种气体激光器产生连续不断光束。
- Carbon dioxide consists of carbon and oxygen. 二氧化碳是由碳和氧组成的。
