横向
1
Large natural elevation of earth
3
One of seven major landmasses
5
Seasonal heavy rainfall
纵向
2
Wearing away of land by water or wind
3
Steep rock face at edge of land
4
Land surrounded by water
6
Largest river in South America
7
Area where water covers the soil
8
Deep narrow valley with steep sides
9
Mountain that can erupt with lava
10
Goods brought in from another country