求翻译：肺是体内外气体交换的场所，人体通过肺，从自然界吸入清气，呼出体内的浊气，吐故医`学教育网搜集整理纳新，使体内外的气体不断交换，从而保证了人体新陈代谢的正常进行。是什么意思？

Pulmonary gas exchange is a place outside the body, the body through the lungs, clear from the inhalation of natural gas, exhaled aggregate of the body, spit it `Medical School collected more satisfied that the new network, so that a continuous exchange of gas in vivo, thus ensuring the human metabo

正在翻译，请等待...

The lung is the place which in vivo external Qi body exchanges, the human body through the lung, from the nature inspiration fresh air, exhales in vivo the foul air, therefore spits the medical `study education network collection and collation to breathe in fresh air, causes outside in vivo the gas

正在翻译，请等待...

Pulmonary gas exchange is a place outside the body, the body through the lungs, clear from the inhalation of natural gas, exhaled aggregate of the body, spit it `Medical School collected more satisfied that the new network, so that a continuous exchange of gas in vivo, thus ensuring the human metabo