Ключевые слова: 2, adult, animal, breed, collar, companion, confederate, couple, dog, domestic, family, fangs, fatigue, female, friend, friendly, lies, love, male, mammal, muscular, nature, nose, nursery, obey the command, open mouth, pair, pedigree, pet, portrait, purebred, resting, rottweiler, sand, selective focus, short haired, sight, strong, teeth, tongue, training, two, walk,