横向
1
Ocean between Americas and Europe/Africa
4
Dry land with little rainfall
5
Goods sold to another country
7
Largest river in South America
13
Region surrounding the North Pole
14
Vast body of salt water
纵向
2
Where river meets the sea
3
Large natural stream of water
6
Land surrounded by water on three sides
8
Area where water covers the soil
9
Raised area of land, smaller than a mountain
10
Land surrounded by water
11
Distance east or west of prime meridian
12
Large natural elevation of earth
15
Low-lying land surrounded by higher ground