横向
1
Chain or group of islands
8
Largest ocean on Earth
10
Land surrounded by water on three sides
11
Vast body of salt water
纵向
2
Visual representation of an area
3
Flat grassland in tropical regions
4
Distance east or west of prime meridian
5
Distance north or south of equator
6
Seasonal heavy rainfall
7
Deep narrow valley with steep sides
9
Large slow-moving mass of ice