横向
1
Large natural elevation of earth
3
Line dividing two countries
5
Large body of water partly enclosed by land
7
One of seven major landmasses
8
Narrow sea inlet between cliffs
纵向
2
Distance north or south of equator
4
Low-lying land surrounded by higher ground
6
Mountain that can erupt with lava
9
Largest ocean on Earth
10
Seasonal heavy rainfall
11
Dry land with little rainfall
12
Wearing away of land by water or wind