The margin of error for a racing driver is tiny.对赛车手而言,稍有不慎就会出错。He was badly bitten by the racing bug in his teens.他十几岁时对赛车着了迷。Jockeys are forbidden to bet on the outcome of races.职业赛马骑师禁止对赛马结果下注。Williams is obsessive about motor racing.威廉斯对赛车到了痴迷的程度。