横向
1
Distance north or south of equator
6
Goods brought in from another country
7
Deep narrow valley with steep sides
8
Ridge of rock or coral near the surface
9
Long-term weather patterns of an area
10
Area where water covers the soil
12
Wearing away of land by water or wind
纵向
2
Total number of people in an area
3
Chain or group of islands
4
Large area covered with trees
5
Flat elevated area of land
11
Landform where river meets the sea