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空气是地球的账幕,它无形无影地笼罩在地球的身上,它包围着陆地和海洋,它环绕着高山和旷野。空气是大自然的代表,它不声不响地走过了世界的每个角落,走遍了城市和乡村,走遍了沙漠和森林。空气是永恒的流浪者,它永远过着漂泊的生活,它高飞远走,到处为家,它又无处不到,无孔不入。空气是气体的海洋,生命的仓库,它给万物以滋养,使大地充满了生命的光辉,充满了青春的活力。(见《我们的地上妈妈:空气》)空气,人们对它老早就发生兴趣了。人们登高山而觉得气喘,又觉得山顶比山下冷得多。但是,在科学仪器没有发明以前,
Air is the tabernacle of the earth, shadowlessly shrouded in the earth, surrounded by land and sea, and surrounded by mountains and wilderness. Air is the representative of nature, it quietly walked through every corner of the world, traveled the cities and villages, traveled the desert and forests. The air is the eternal wanderer, it always lived a wandering life, it flew away, everywhere home, it is everywhere, all-pervasive. Air is the sea of gas, the storehouse of life, which nourishes everything, making the earth full of the radiance of life, filled with the vigor of youth. (See “Our Mother on the Earth: Air”), people have long been interested in it. People climbed the mountain and feel panting, but also feel the mountain is much colder than the mountain. However, before scientific instruments were invented,