横向
1
Largest ocean on Earth
3
Landform where river meets the sea
6
Piece of land jutting into the sea
7
Imaginary line around the middle of Earth
10
Flat grassland in tropical regions
纵向
2
Height above sea level
4
Low-lying land surrounded by higher ground
5
Region between the two tropic lines
8
Land surrounded by water
9
Wearing away of land by water or wind