横向
1
Narrow sea inlet between cliffs
3
Tool for finding directions
4
Cold treeless Arctic plain
6
Low-lying land surrounded by higher ground
8
Largest ocean on Earth
9
Largest river in South America
10
Distance east or west of prime meridian
纵向
2
Dry land with little rainfall
3
Deep narrow valley with steep sides
5
Seasonal heavy rainfall
7
Region surrounding the North Pole