And most of them don't make it, but a few of them do, and with the ones that gain value, you can sell some, and when you sell them, you have money to pay the interest on those bonds, but you also have money to fund the next round of trials.
大部分做不到 只有少数能做到 那些增值的药物可以出售, 此时, 获得的利润可以付利息, 而且有余钱进行下一阶段的测试