人们需要新鲜空气。
人们需要通过窗户获得阳光和新鲜空气，观赏室外景色，还要求它起到保温、隔热、遮阳、抗风雨、阻挡噪声等作用。
People need to get through the window sunshine and fresh air, and enjoy outdoor scenery, also isolate noise and preserve heat. The subsistence environment of human being is falling into dire straits.
人们需要通过窗户获得阳光和新鲜空气，观赏室外景色，还要求它起到保温、隔热、遮阳、抗风雨、阻挡噪声等作用。
People need to get through the window sunshine and fresh air, and enjoy outdoor scenery, also isolate noise and preserve heat. The subsistence environment of human being is falling into dire straits.
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