横向
1
Chain or group of islands
7
Line dividing two countries
8
Flat grassland in tropical regions
9
Where river meets the sea
10
Large natural stream of water
11
Goods brought in from another country
纵向
2
Landform where river meets the sea
3
Tool for finding directions
4
Physical features of land
5
Mountain that can erupt with lava
6
Goods sold to another country
12
Total number of people in an area
13
Imaginary line around the middle of Earth