Ключевые слова: activity, amusement, background, bright, childhood, childish, climb, community, construction, danger, day, design, development, empty, environment, equipment, exercise, free, fun, game, green, joy, ladder, leisure, metal, modern, nature, new, nobody, outdoor, outdoors, outside, park, play, playground, recreation, recreational, safety, sand, seesaw, slide, structure, summer, sunny, swing, swinging, toy, tree, urban,