The rarest medal in the OlympiCS wasnt created from gold.buta bolt(螺栓)．

The story begins on a cold winter afternoon in Innsbrtlck(意大利城市：因斯布鲁克)atthel9640lympictwo-manbobsled eompeti-tion(双人雪橇比赛)．A British team driven bv T0ny Nash had iustcompletedits first run，which had put thfm in second place.Thenthey made a most disheartening discovery .They had broken a bolton the rear(后部)axle (轴)of their sled (雪橇) which Would putthem out of the competition.