You could consider the developing nations of the world to be the global equivalent of elementary school students; as they work toward modernization some make rapid progress, while others creep forward slowly. Both groups, though, keep working toward their goals of modernization, hoping to one day reach the same level of prosperity as their developed brethren.
我們可以將世界上的後進社會看成正在成長的小學生，在現代化的道路上，有的是大步躍前，有的是匍匐前行，但都是為了達到現代化目標而挺進，也就是希望自己能擁有先進國家成熟社會的富庶繁榮。