横向
1
Region surrounding the North Pole
4
Largest river in South America
5
Large body of water partly enclosed by land
7
Large area covered with trees
9
Land surrounded by water on three sides
12
Physical features of land
13
Tool for finding directions
纵向
2
Land surrounded by water
3
Steep rock face at edge of land
6
Wearing away of land by water or wind
8
Seasonal heavy rainfall
10
Largest ocean on Earth
11
Ocean between Americas and Europe/Africa