SDF

例句：

1. 1. The SDF team has been working on this project for months.
   SDF团队已经在这个项目中工作了几个月。
2. 2. The SDF is a crucial part of the company's strategy.
   SDF是公司战略中至关重要的一部分。
3. 3. The SDF is responsible for monitoring and reporting on the progress of the project.
   SDF负责监控和报告项目进展。