People did not object to making young children work long hours, in places that had bad air and bad light.

VOA: special.2010.08.01

He did it to bring more light, he did it to bring more air, he did it to free the flow for capital, money; that's why the department stores are on the boulevards.

他这么做是为了多点光,多点新鲜空气,他为了使资产的流动更为自由,这就是为什么百货商店都建在大道旁边

耶鲁公开课 - 1871年后的法国课程节选

This gives them their color. However,when light travels from air to snow, some light is sent back,or reflected.

VOA: special.2010.01.05

These features permitted as much air flow and natural light as possible.

VOA: special.2009.08.21