n.

1. 切下的部分，片，块[C]
   Mother cut the cake into six equal sections.

   母亲把蛋糕切成相等的六块。

2. （事物的）部分[C]
   He occupied the other section of Martin's house.

   他占用了马丁房子的另一部分。

3. （文章等的）节；（条文等的）款，项[C]
   This chapter has four sections.

   这一章有四节。

4. 地区，区域，地段[C]
   The mayor inspected the residential section of the city.

   市长视察了该市的住宅区。

5. 阶层，界[C]
   The government's new economic policy gained acclaim from various sections of society.

   政府的新经济政策受到社会各阶层的拥护。

6. 部门；处；科；股；组[C]
7. 【军】分队，小队[C]
8. 断面图，剖面[C]
9. 切开；切断[U]
10. 【生】（指分类单位）派；（果子的）瓣[C]

vt.

1. 把……分成段（或组等）
   The teacher sectioned the class for dialogues.

   老师把班级分组进行对话练习。

2. 将……切片

vi.

1. 被切割成片（或段）

n.

1. any of the more or less distinct parts into which something is or may be divided or from which it is made up.
   ▸N. Amer. a measure of land, equal to one square mile.
   ▸chiefly N. Amer. a particular district of a town.
   ▸NZ a building plot.
2. a distinct group within a larger body of people or things.
   ▸a subdivision of an army platoon.
   ▸Biology  a secondary taxonomic category, especially a subgenus.
3. the cutting of a solid by or along a plane.
   ▸the shape resulting from cutting a solid along a plane.
   ▸a representation of the internal structure of something as if it has been cut through.
4. Surgery  a separation by cutting.
5. Biology  a thin slice of plant or animal tissue prepared for microscopic examination.

v.

1. divide into sections.
2. Surgery  divide by cutting.
3. Brit. commit (someone) compulsorily to a psychiatric hospital in accordance with a section of a mental health act.