translation.en: Well again, by knowing something about the molecular pathways, it was possible to pick one of those many, many compounds that might have been useful and try it out.
translation.zh: 恩再一次的，通过了解分子途径的某些知识， 我们是有可能 从成千上万的化合物中找出一种或许有用的， 然后进行尝试治疗。