translation.en: So this tells us that, in a global economy, it is no longer national improvement that's the benchmark for success, but the best performing education systems internationally.
translation.zh: 这告诉我们，在全球经济中， 衡量一国教育成功的基准不再只局限于本国的进步， 而是要将其放到国际上最好的教育系统中去进行比对才有意义。