The aim is partly aesthetic, but also an attempt to increase the value of neighboring homes by replacing signs of blight with greenery.
该目的一部分是出于审美需求，而且也是为了通过用绿色植物取代荒芜的迹象，来尝试增加邻近房屋的价值。
The new research, published in the American Journal of Preventive Medicine, isn't the first to associate greenery with better health, but it does get us closer to identifying what works and why.
这项发表在《美国预防医学杂志》上的新研究，并不是第一个将绿色植物与更好的健康状况联系起来的研究，但它确实让我们更接近于确定什么更奏效以及为什么会这样。
More greenery in a city, spread through streets and over roofs, means more cooling as water evaporates from leaves; the bits which are not green can be painted white, to reflect sunlight.
城市街道上，房顶上的绿色植物更多了，这意味着随着水分从叶片上蒸发，会带来更多的清凉；非绿色部分可以涂成白色用以反射太阳光。
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