横向
1
Chain or group of islands
6
Physical features of land
7
Visual representation of an area
8
Long-term weather patterns of an area
12
Largest river in South America
纵向
2
Large area covered with trees
3
Landform where river meets the sea
4
Flat elevated area of land
5
Ocean between Americas and Europe/Africa
9
Half of the Earth
10
Seasonal heavy rainfall
11
Region surrounding the North Pole