横向
1
Distance north or south of equator
6
Large natural elevation of earth
7
Imaginary line around the middle of Earth
8
Wearing away of land by water or wind
纵向
2
One of seven major landmasses
3
Goods brought in from another country
4
Height above sea level
5
Landform where river meets the sea
9
Large body of water partly enclosed by land
10
Largest river in South America
11
Goods sold to another country
12
Mountain that can erupt with lava
13
Low area between mountains