云南省社会科学院经济学家陈利君指出，他所在城市昆明的市中心距离呈贡约20公里过于拥挤。
Chen Lijun , an economist at the Yunnan Academy of Social Sciences in Kunming , points out that the centre of his city which lies about 20km from Chenggong is overcrowded .
陈利君