横向
1
Low-lying land surrounded by higher ground
4
Ocean between Americas and Europe/Africa
7
Piece of land jutting into the sea
8
Ridge of rock or coral near the surface
10
Goods sold to another country
纵向
2
Tool for finding directions
3
Region between the two tropic lines
5
Total number of people in an area
6
Seasonal heavy rainfall
7
City that is seat of government
9
Large natural stream of water
11
Long-term weather patterns of an area