It was a matter of, I wanted actually a break, and we looked at maps, we looked at graphs, we asked some questions and tried some tools that actually have been used many times before for other things.
重要的是， 我想要有个突破， 让我们能够看着分布图，看着图表， 提出一些问题， 然后尽量采用 以前在其他方面运用过很多次的 方法。