To bring a successful drug to market, it takes, on average, 13 years — that's one drug — with a sunk cost of 4 billion dollars, and only one percent of the drugs that start down that road are actually going to get there.
要想将一种成功开发的药物推向市场， 平均需要13年，这还仅仅是一种药物， 此外还会产生40亿美元的沉没成本。 而且计划通过这一流程投放市场的药物中， 只有百分之一能够完成这一目标。