Ключевые слова: activity, american, athletics, background, ball, baseball, blue, child, children, competition, entertainment, equipment, exercise, fastball, field, fingers, game, grasp, grasping, grass, grip, griping, hand, hold, holding, littel boy, male, pitch, pitcher, plaster, play, player, playing, preparation, professional, properly, recreation, right, round, sky, sport, squeeze, team, thumb, tree, white,