Ключевые слова: active lifestyle, agility, animal, animal trainer, border collie, canine, cheerful, command, curiosity, cute, dog, dog biscuit, enjoyment, female, five, friendship, fun, grass, joy, learning, lifestyle, nature, obedience, obedience training, outdoors, park, people, pet owner, pet treat, playful, playing, purebred, sit down, sitting, summer, sunlight, sunset, togetherness, trained dog, training, woman,