Ключевые слова: black, blocked, cement, city, cleaning, clog, clogged, concrete, construction, cover, dirt, dirty, drain, drainage, flood, furrow, garbage, grate, grid, groove, ground, gutters, hole, industrial, industry, iron, lid, line, maintenance, manhole, mesh, metal, old, pavement, problem, road, rust, rusty, sewage, sewer, solid, steel, street, surface, ton, urban, water, white,