oxygen from the air中文什么意思

例句与用法

1. Our respiratory system ? lungs and associated passageways ? snags the oxygen from the air , passes it along to the transporters in our bloodstream , drags the carbon dioxide ( one of the byproducts of cell life ) back out of the blood and expels it out into the air
   呼吸系统? ?肺、以及相联的各个通道? ?从空气中吸入氧气，通过循环系统把他们输送到血液里，把二氧化碳（细胞的副产品）从血液里呼吸出去，排放到空气。