横向
1
Distance north or south of equator
4
Steep rock face at edge of land
6
Largest river in South America
7
Line dividing two countries
纵向
2
Landform where river meets the sea
3
Goods sold to another country
4
Long-term weather patterns of an area
5
Large area covered with trees
8
Dry land with little rainfall
9
Vast body of salt water
10
Ridge of rock or coral near the surface