translation.en: And even those people who complain and say that the relative standing of countries on something like PISA is just an artifact of culture, of economic factors, of social issues, of homogeneity of societies, and so on, these people must now concede that education improvement is possible.
translation.zh: 即使那些抱怨的人说 那些相对有名次的国家 PISA只是文化的产物， 经济因素和社会的产物， 以及社会一致化的产物，等等， 这些人现在必须承认教育改良是可能。