横向
1
Imaginary line around the middle of Earth
4
Wearing away of land by water or wind
5
Goods sold to another country
7
Low area between mountains
11
Piece of land jutting into the sea
纵向
2
Area where water covers the soil
3
Large natural stream of water
5
Where river meets the sea
6
Deep narrow valley with steep sides
8
Ocean between Americas and Europe/Africa
9
Vast body of salt water
10
Mountain that can erupt with lava