translation.en: Hans put up this presentation in which he showed, for various different countries, in various different colors -- he showed income levels on one axis and he showed infant mortality, and he shot this thing animated through time.
translation.zh: 汉斯在他的演示文档中 使用不同的颜色表示不同的国家 他在一个轴上显示收入水平 同时他用动画按年份显示婴儿死亡率