横向
1
Land surrounded by water on three sides
5
Flat elevated area of land
9
Largest river in South America
11
Physical features of land
纵向
2
Imaginary line around the middle of Earth
3
Land surrounded by water
4
Long-term weather patterns of an area
6
Wearing away of land by water or wind
7
Seasonal heavy rainfall
8
Large body of water partly enclosed by land
10
Region surrounding the North Pole