Once,acirclelostapieceofitsown.Thecirclewantedtobewhole...
问题详情：Once,acirclelostapieceofitsown.Thecirclewantedtobewhole,soitwentaround,lookingforits 1 piece.Butbecauseitwasnotcomplete,itcouldonlyroll(滚)veryslowly.Itenjoyedtheflowersandthesunshine ...