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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The roads in Mogadishu have been cleared of roadblocks set up by the militant group al-Shabab for nearly two years, allowing Hussein to freely deliver food and construction materials around the city.

阿尔沙巴布武装组织两年前在摩加迪沙道路上设置的路障已被清除，这样侯赛因就可自由无碍地在市内运送食物和建筑材料。

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The nursery is the important component in the construction of city afforestation, Seedling is the goods and materials foundation of construction of afforestation.

园林苗圃是城市绿化建设中的重要组成部分，苗木是园林绿化建设的物资基础。

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