横向
1
One of seven major landmasses
6
Half of the Earth
7
Flat elevated area of land
8
Visual representation of an area
9
Land surrounded by water
12
Mountain that can erupt with lava
纵向
2
Vast body of salt water
3
Landform where river meets the sea
4
Wearing away of land by water or wind
5
Largest river in South America
10
Low area between mountains
11
Physical features of land
13
Region surrounding the North Pole
14
Low-lying land surrounded by higher ground