interest theory

例句：

1. 1. The study of economics is afascinating field that explores the relationship betweeninterest and wealth.
   经济学的研究是一个引人入胜的领域，它探索了利息与财富之间的关系。
2. 2. This theory suggests that people's behavior is influenced by their interestsand desires.
   这一理论表明，人们的行为受到他们的兴趣和欲望的影响。
3. 3. Theinterest theory has been widely accepted in thefield of finance, providing valuable insights intothe workings of markets.
   兴趣理论在金融领域得到了广泛接受，为市场运作提供了宝贵的见解。