横向
1
Height above sea level
3
Deep narrow valley with steep sides
6
Tool for finding directions
7
Seasonal heavy rainfall
8
Goods sold to another country
9
Large natural elevation of earth
12
Line dividing two countries
14
Large natural stream of water
15
Region surrounding the North Pole
纵向
2
Land surrounded by water on three sides
4
Low-lying land surrounded by higher ground
5
Dry land with little rainfall
10
Largest ocean on Earth
11
Vast body of salt water
13
Imaginary line around the middle of Earth