market cycle

例句：

1. 1. The market cycleis a crucial factor in determining the successof a company's products.
   市场周期是决定公司产品成功与否的关键因素。
2. 2. Theeconomic cycle has been affected by the recentglobal financial crisis.
   经济周期受到了最近的全球金融危机的影响。
3. 3. The business cycle is closely linked tothe overall economy, and its fluctuationscan have significant impacts on the country's GDP.
   商业周期与整体经济密切相关，其波动对国家的GDP有重大影响。