translation.en: 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.
translation.zh: 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。