2020年，世界上第一辆二氧化碳汽车就会诞生。那里汽车就不用石油、天然气和太阳能原料，科学家们就会利用人们呼出的废气------二氧化碳作为汽车的能源。
In 2020, the world's first carbon dioxide car will be born. Where cars don't use oil, natural gas and solar energy, scientists will use the exhaust gas that people exhale - carbon dioxide as the energy of cars.
