Ключевые слова: active, activity, adventure, back, bicycle, bike, biking, boy, child, childhood, cycle, day, drive, ecological, foot, grass, healthy, kid, learn, leg, leisure, lifestyle, little, nature, outdoor, outside, park, pavement, pedal, people, person, play, recreation, riding, road, safety, small, speed, spring, street, study, summer, tire, tour, tourism, town, transport, transportation, wheel, young,