The reason China has not risen higher is that other countries have been growing too, and because the gaps between countries are enormous. The range between the poorest and the richest countries in the world is a factor of more than 100.
中国排名没有多大进步的原因是其他国家也在发展，还因为国与国之间的差距非常之大。世界上最穷和最富的国家之间相差一百多位。排名前25位国家的人均实际国内生产总值是排名后25位国家的15倍。