横向
1
Large natural stream of water
4
Large natural elevation of earth
6
Low area between mountains
7
Largest ocean on Earth
8
Flat elevated area of land
纵向
2
Raised area of land, smaller than a mountain
3
Goods brought in from another country
5
Low-lying land surrounded by higher ground
9
Land surrounded by water
10
Chain or group of islands
11
Largest river in South America