Most of the construction fills are dark brown or gray, which does not help.

而大多结构填充物是深棕色或灰色，也没什么帮助。

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An urban heat island is created when dark colored man-made materials used in the construction of a city absorb the sun's rays and release that energy back out as heat.

深色的人造建筑材料吸收太阳辐射，并将获取的能量以热量的形式释放出来，城市“热岛效应”随即产生。

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On the other hand, exterior cladding is dark, integrating the construction in the dark environment of the forest.

另一方面，在建筑外表面包裹一层黑色，更加有利于建筑融入到森林深邃的环境中去。

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The Unite union said the committee had "begun to shine a light on the dark side of the construction industry".

BBC: Construction workers

The north Strip is also home to the Fontainebleau Las Vegas, a hulking bluish-green tower that was 70 percent completed when the construction workers were dismissed, and the Sahara hotel-casino, which went dark in 2011, and only recently began renovations.

NPR: Stalled Las Vegas Strip Project To Get New Owner