Once,acirclelostapieceofitsown.Thecirclewantedtobewhole...
問題詳情：Once,acirclelostapieceofitsown.Thecirclewantedtobewhole,soitwentaround,lookingforits 1 piece.Butbecauseitwasnotcomplete,itcouldonlyroll(滾)veryslowly.Itenjoyedtheflowersandthesunshine ...