横向
1
Height above sea level
6
Largest river in South America
7
One of seven major landmasses
8
Large natural elevation of earth
9
Largest ocean on Earth
11
Large area covered with trees
12
Goods brought in from another country
纵向
2
Area where water covers the soil
3
Flat elevated area of land
4
Chain or group of islands
5
Where river meets the sea
10
Seasonal heavy rainfall