横向
1
Region between the two tropic lines
5
Landform where river meets the sea
6
Large body of water partly enclosed by land
9
Cold treeless Arctic plain
10
Goods brought in from another country
11
City that is seat of government
12
Deep narrow valley with steep sides
13
Large natural elevation of earth
纵向
2
Flat grassland in tropical regions
3
Narrow sea inlet between cliffs
4
Flat elevated area of land
7
Wearing away of land by water or wind
8
Largest ocean on Earth