Laffer curve

例句：

1. 1. The government's policy on environmental protection has been a subject of much debate and discussion.
   政府对环境保护的政策一直是争论和讨论的焦点。
2. 2.The Laffer curve shows that the marginal benefit of an investment increases as the amount of capital invested increases.
   拉弗曲线表明，随着投资金额的增加，投资的边际效益会上升。
3. 3. The Laffer curve is often used to analyze the relationship between economic growth and inflation.
   拉弗曲线常用于分析经济增长与通货膨胀之间的关系。