横向
1
Physical features of land
5
Line dividing two countries
7
Goods sold to another country
9
Steep rock face at edge of land
10
Long-term weather patterns of an area
11
Where river meets the sea
12
Wearing away of land by water or wind
纵向
2
Area where water covers the soil
3
Distance north or south of equator
4
Region near the equator
5
Low-lying land surrounded by higher ground
6
Mountain that can erupt with lava
8
Low area between mountains