Waste disposal removal recycling concept megalopolis vector illustration. Garbage truck dustcart, dumpsters and two scavengers janitors people sorting and collecting trash. 废物处置、去除和再循环的概念。垃圾车垃圾车垃圾车,垃圾箱和两个清道夫看门人整理垃圾.大型都市建筑背景.