横向
1
Largest river in South America
4
Flat elevated area of land
6
Raised area of land, smaller than a mountain
7
Where river meets the sea
10
Region surrounding the North Pole
11
Goods brought in from another country
纵向
2
Low area between mountains
3
Mountain that can erupt with lava
5
Vast body of salt water
8
Chain or group of islands
9
Distance east or west of prime meridian
12
Large natural stream of water