横向
1
Dry land with little rainfall
5
Large natural elevation of earth
6
Goods brought in from another country
7
Largest hot desert in the world
11
Region near the equator
12
Low area between mountains
13
Land surrounded by water
14
One of seven major landmasses
纵向
2
Flat grassland in tropical regions
3
Half of the Earth
4
Narrow sea inlet between cliffs
8
Physical features of land
9
Largest river in South America
10
Flat elevated area of land
15
Area where water covers the soil
