横向
1
Dry land with little rainfall
5
Largest river in South America
6
Distance east or west of prime meridian
7
Flat elevated area of land
8
Mountain that can erupt with lava
9
Large natural stream of water
11
Steep rock face at edge of land
12
Goods sold to another country
14
Low-lying land surrounded by higher ground
纵向
2
Wearing away of land by water or wind
3
Half of the Earth
4
Distance north or south of equator
10
Body of water surrounded by land
13
One of seven major landmasses