the north-south gap 南北差距
surplus rural labor 农村富余劳动力
competitiveness of agriculture in the market 农业的市场竞争力
bubble economy 泡沫经济
income disparity 贫富悬殊
impoverished areas 贫困地区
impoverished people 贫困人口
bottleneck restrictions 瓶颈制约
assume leadership 取得领先地位
outlaw illegal gains 取缔非法收入