Ключевые слова: abrasion, accident, amateur, bruise, child, concept, danger, demonstrate, difference, equipment, fall, female, girl, give, hurt, injured, injury, kid, knee, knee pad, learn, leg, leisure, outdoor, outside, pain, park, person, pink, professional, protection, protective, road, roller, roller blade, roller skate, roller skating, rollerskating, safety, scrape, scratch, show, skate, skater, sport, sporty, summer, training, trauma, wound,