Ключевые слова: actions, adversity, agility, animal, animal tricks, animals and pets, border collie, boundary, canine, cheerful, collie, competition, competitive sport, crimp, cumber, cute, dog, fall, friendship, grass, green, gymnastics bar, happiness, hunting dog, hurdle, impediment, leaves, mammal, nature, obedience, obstacle course, outside, partnership, pets, play, playful, portrait, puppy, purebred dog, resting, retriever, running, sad, say eyes, sport, sports and fitness, summer, sunset, tame, tricolor,