Ключевые слова: black, boy, caucasian, cheerful, child, childhood, chinese, class, cute, female, foam rollers, girl, goggles, gym, happy, healthy lifestyle, indoors, learning, leisure, leisure activity, leisure center, lesson, male, mixedrace, pool, poolside, portrait, recreational pursuit, sitting, smiling, sport, swim, swimmer, swimming, swimming cap, swimming pool, swimwear, together, water, water sport,