横向
1
Low-lying land surrounded by higher ground
4
Visual representation of an area
5
Large area covered with trees
6
Distance north or south of equator
8
Cold treeless Arctic plain
12
Line dividing two countries
14
Goods brought in from another country
纵向
2
Flat elevated area of land
3
Total number of people in an area
7
Vast body of salt water
9
Chain or group of islands
10
One of seven major landmasses
11
Body of water surrounded by land
13
Long-term weather patterns of an area
15
Tool for finding directions