横向
1
Area where water covers the soil
5
Deep narrow valley with steep sides
6
Visual representation of an area
7
Landform where river meets the sea
8
Imaginary line around the middle of Earth
13
Largest river in South America
纵向
2
Low area between mountains
3
Land surrounded by water on three sides
4
Cold treeless Arctic plain
5
City that is seat of government
9
Large slow-moving mass of ice
10
Dry land with little rainfall
11
Ocean between Americas and Europe/Africa
12
Large body of water partly enclosed by land