耕作翻土会释放二氧化碳,而运输车辆会排放废气。
Soil tilling releases carbon dioxide, and delivery vehicles emit exhaust.
他们吸入氧气,将糖转化成能量,并释放二氧化碳。
They're taking in oxygen to help them convert sugars into energy, and releasing carbon dioxide.
如果是热的,它就会释放二氧化碳,喷的到处都是。
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