横向
1
Low-lying land surrounded by higher ground
3
City that is seat of government
7
Body of water surrounded by land
9
Cold treeless Arctic plain
10
Wearing away of land by water or wind
11
Large natural stream of water
13
Land surrounded by water on three sides
纵向
2
Region between the two tropic lines
4
Low area between mountains
5
Distance east or west of prime meridian
6
Ocean between Americas and Europe/Africa
8
Piece of land jutting into the sea
12
Narrow sea inlet between cliffs
14
Where river meets the sea