period of vigorous economic development

例句：

1. 1.The economic growth period is crucial for the development of a country.
   经济增长期对于一个国家的发展至关重要。
2. 2. During this period, the company was undergoing significant changes.
   在这个时期，公司经历了重大变革。
3. 3. The scientist spent several years in this period conducting research.
   这位科学家在这个时期花费了数年时间进行研究。