section pillar

例句：

1. 1. The company has divided its operations into different sections.
   这家公司将其业务分为不同的部分。
2. 2. The teacher explained the math section of the textbook in detail.
   老师详细解释了课本的数学部分。
3. 3. The project is divided into several sections to ensure progress.
   这个项目被分成几个部分以确保进度。