investigation phase

例句：

1. 1. The company's investigation phase is crucial for understanding the market dynamics.
   公司的调查阶段对于理解市场动态至关重要。
2. 2. The scientist spent several months in the investigation phase, gathering data and analyzing it.
   科学家在调查阶段花费了数月时间，收集数据并进行分析。
3. 3. During the investigation phase, the team conducted interviews and reviewed documents to gather information.
   在调查阶段，团队进行了采访并审查了文件以收集信息。