section airway

例句：

1. 1. The report is divided into several sections for easy understanding.
   这份报告被分成了几个部分以便容易理解。
2. 2.The teacher explained the new concepts in different sections of the lesson.
   老师在课上的不同部分解释了新概念。
3. 3. The museum has a section dedicated to ancient artifacts.
   博物馆有一个专门展示古代文物的部分。