section of cross absorption

例句：

1. 1. The company has a section dedicated to customer service.
   公司有一个专门负责客户服务的部门。
2. 2. This section of the road is unpaved and dangerous.
   这条路的这一段没有铺路，很危险。
3. 3. The teacher divided the class into sections for different activities.
   老师把班级分成几个小组，以便进行不同的活动。