所有这些微粒与气体不但造成了全球变暖，其中有一些还是危险得能引发呼吸系统疾病的空气污染物。

All of these particles and gases contribute to global warming and some are dangerous air pollutants that can lead to respiratory disease.

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城市空气污染的程度越低，人们的呼吸系统(长、短期)和心血管健康状况就会越好。

The lower the levels of air pollution in a city, the better respiratory (both long - and short-term), and cardiovascular health of the population will be.

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因风蚀和其他空气污染物而形成的大气粉尘造成呼吸系统疾病；

respiratory diseases caused by atmospheric dust from wind erosion and other air pollutants;

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The main goal of the respiratory system is to bring fresh in so that you can extract oxygen from it, and blow used air out so that you can rid of carbon dioxide which is the end product of carbon metabolism inside our bodies.

呼吸系统的主要功能是,吸入新鲜空气,以便获得空气中的氧气,呼出废气,以便排出二氧化碳,二氧化碳是人体内碳代谢的终产物

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