横向
1
Region surrounding the North Pole
4
Large area covered with trees
7
Ocean between Americas and Europe/Africa
8
Flat elevated area of land
10
Physical features of land
12
Mountain that can erupt with lava
纵向
2
Flat grassland in tropical regions
3
Region near the equator
5
Distance east or west of prime meridian
6
Large natural stream of water
7
Largest river in South America
9
Goods brought in from another country
11
Imaginary line around the middle of Earth
13
Low-lying land surrounded by higher ground