PDOP

例句：

1. 1.The police department is responsible for maintaining public order and protecting the peace.
   警察局负责维护公共秩序和保护和平。
2. 2. The PDOP is a crucial part of our daily lives, affecting everything from traffic to education.
   PDOP是我们日常生活的重要组成部分，影响从交通到教育的一切。
3. 3. The PDOP has been a topic of discussion among experts in the field.
   PDOP是该领域专家讨论的主题。