横向
1
Landform where river meets the sea
4
Flat elevated area of land
6
Largest ocean on Earth
7
Region surrounding the North Pole
8
Largest river in South America
9
Mountain that can erupt with lava
10
Large area covered with trees
11
Large natural stream of water
12
Low area between mountains
14
Half of the Earth
纵向
2
Wearing away of land by water or wind
3
Chain or group of islands
5
Dry land with little rainfall
13
Large natural elevation of earth