economic cycle theory的用法和樣例：
例句
- The resort life cycle theories of Butler had provided a theories frame for us to study the evolving process of the resort.
巴特勒的旅遊地生命周期理論為我們提供了研究旅遊地演化過程的理論框架。 - This article introduces the theory of information lifecycle,the concept and characteristics of information lifecycle management.
介紹了信息生命周期理論及信息生命周期管理的概念及特徵。
