Ключевые слова: activity, amuse, amusement, axle, ball bearing, bearing, big yoyo, blue, bokeh, bounce, bouncing, challenge, childhood, colorful, competition, cord, enjoyment, entertainment, focused, fun, game, green, high, isolated, knot, leisure, loop, object, offstring, pastime, play, plaything, precision, recreation, skill, skill toy, spin, string, toss, toy, toys, trick, twins, two, yo yo, youth, yoyo,