横向
1
Largest river in South America
3
Goods sold to another country
5
Landform where river meets the sea
8
Physical features of land
10
Line dividing two countries
12
Chain or group of islands
纵向
2
Largest hot desert in the world
3
Imaginary line around the middle of Earth
4
Large area covered with trees
6
Narrow sea inlet between cliffs
7
Dry land with little rainfall
9
Raised area of land, smaller than a mountain
11
Distance east or west of prime meridian