横向
1
Flat grassland in tropical regions
4
Deep narrow valley with steep sides
6
Low-lying land surrounded by higher ground
7
Body of water surrounded by land
8
Chain or group of islands
9
Ridge of rock or coral near the surface
10
Land surrounded by water
11
Goods sold to another country
纵向
2
Large area covered with trees
3
Height above sea level
4
Long-term weather patterns of an area
5
Largest river in South America
12
Goods brought in from another country
13
Ocean between Americas and Europe/Africa
14
Steep rock face at edge of land