横向
1
Low area between mountains
3
Region surrounding the North Pole
5
Goods brought in from another country
9
Region between the two tropic lines
10
Vast body of salt water
纵向
2
Area where water covers the soil
4
Flat elevated area of land
6
Dry land with little rainfall
7
Total number of people in an area
8
Largest river in South America
11
Seasonal heavy rainfall
12
Steep rock face at edge of land
13
Piece of land jutting into the sea
14
Largest ocean on Earth