横向
1
Low-lying land surrounded by higher ground
3
Height above sea level
6
Large natural stream of water
7
Ocean between Americas and Europe/Africa
8
Ridge of rock or coral near the surface
9
Region near the equator
9
Region between the two tropic lines
纵向
2
Wearing away of land by water or wind
4
Landform where river meets the sea
5
Distance north or south of equator
10
Dry land with little rainfall
11
Largest hot desert in the world
12
Large natural elevation of earth
13
Flat elevated area of land
14
Tool for finding directions