横向
1
Raised area of land, smaller than a mountain
3
Region surrounding the North Pole
5
Dry land with little rainfall
7
Region near the equator
9
Chain or group of islands
纵向
2
Large slow-moving mass of ice
4
Deep narrow valley with steep sides
6
Largest ocean on Earth
8
Body of water surrounded by land
10
Low area between mountains
11
Line dividing two countries
12
Physical features of land