section of unsufficient grade

例句：

1. 1. The company has divided its operations into different sections.
   该公司已将其业务划分为不同的部分。
2. 2. The teacher divided the class into sections for group work.
   老师将班级分成小组进行工作。
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展区。