横向
1
Land surrounded by water on three sides
7
Half of the Earth
8
Deep narrow valley with steep sides
9
Tool for finding directions
10
Piece of land jutting into the sea
12
Wearing away of land by water or wind
13
Goods brought in from another country
纵向
2
Largest river in South America
3
Imaginary line around the middle of Earth
4
Flat elevated area of land
5
Region surrounding the North Pole
6
Area where water covers the soil
11
Large natural stream of water