横向
1
Dry land with little rainfall
3
Seasonal heavy rainfall
4
Largest river in South America
5
Region between the two tropic lines
6
Landform where river meets the sea
8
Deep narrow valley with steep sides
11
Goods brought in from another country
纵向
2
One of seven major landmasses
3
Large natural elevation of earth
7
Total number of people in an area
9
Wearing away of land by water or wind
10
Narrow sea inlet between cliffs