In bridge building we're well advanced in understanding what are the problems with building bridges and how do we overcome them?

在桥梁建设中我们十分清楚地了解,在造桥的过程中会遇到什么问题,以及如何克服这些问题

耶鲁公开课 - 生物医学工程探索课程节选

You can see how they moved from that definition of probability to the current definition.

所以你可以清楚地了解到,概率是如何由那个定义,转变为今天的定义的

耶鲁公开课 - 金融市场课程节选