横向
1
Largest river in South America
3
Ridge of rock or coral near the surface
5
Distance north or south of equator
6
Ocean between Americas and Europe/Africa
8
Region between the two tropic lines
9
Line dividing two countries
10
Tool for finding directions
12
Cold treeless Arctic plain
13
Body of water surrounded by land
纵向
2
Largest hot desert in the world
4
Flat grassland in tropical regions
7
Long-term weather patterns of an area
11
Piece of land jutting into the sea
14
Land surrounded by water
15
Large natural elevation of earth