The vast majority of senior Chinese leaders worked and competed their way to the top. Compare that with the ruling elites in both developed and developing countries, I think you'll find the Party being near the top in upward mobility.
可以说，绝大多数中共高层领导人 都是靠自身努力和激烈竞争获得晋升的. 与其他发达国家和发展中国家 统治精英的出身相比， 我们必须承认中共内部平民出身的干部 享有广阔的晋升空间.