横向
1
Line dividing two countries
2
Mountain that can erupt with lava
3
Large body of water partly enclosed by land
5
Where river meets the sea
6
Large natural elevation of earth
9
Large natural stream of water
10
One of seven major landmasses
12
Flat elevated area of land
纵向
2
Low area between mountains
4
Total number of people in an area
7
Landform where river meets the sea
8
Tool for finding directions
11
Dry land with little rainfall
13
Chain or group of islands