economic curve

例句：

1. 1.The economic curve shows the relationship between income and consumption.
   经济曲线显示了收入和消费之间的关系。
2. 2.The government's economic policy has a significant impact on the economic curve.
   政府的经济发展政策对经济曲线有重大影响。
3. 3.The economic curve is used to predict future economic growth.
   经济曲线被用来预测未来的经济增长。