横向
1
Steep rock face at edge of land
3
Chain or group of islands
9
Deep narrow valley with steep sides
11
Large natural stream of water
纵向
2
Large body of water partly enclosed by land
4
Dry land with little rainfall
5
Raised area of land, smaller than a mountain
6
Mountain that can erupt with lava
7
Long-term weather patterns of an area
8
Flat grassland in tropical regions
10
Wearing away of land by water or wind