n.[C]

1. 大片土地
   To the north of the river is an immense wooded tract.

   河北面是一大片林地。

2. （土地，天空，海面等的）大片，广阔[（+of）]
   He owns a large tract of forest.

   他拥有一大片森林。

3. 【解】道，束
   He had an infection in the upper respiratory tract.

   他上呼吸道感染。

4. 【美】住房开发区，地产

n.

1. 短文；传单；小册子[C]
   He wrote all the campaign tracts.

   这些竞选传单全是他写的。

n.

1. a large area of land.
2. an indefinitely large extent of something.
3. a major passage in the body or other continuous elongated anatomical structure.

n.

n.