横向
1
Goods brought in from another country
5
Visual representation of an area
6
Largest ocean on Earth
7
Mountain that can erupt with lava
11
Landform where river meets the sea
12
Low-lying land surrounded by higher ground
纵向
2
Steep rock face at edge of land
3
Flat elevated area of land
4
Large natural stream of water
8
Area where water covers the soil
9
Largest hot desert in the world
10
Wearing away of land by water or wind