横向
1
Land surrounded by water on three sides
5
One of seven major landmasses
6
Long-term weather patterns of an area
7
Flat grassland in tropical regions
8
Vast body of salt water
9
Dry land with little rainfall
15
Chain or group of islands
纵向
2
Cold treeless Arctic plain
3
Low-lying land surrounded by higher ground
4
Large slow-moving mass of ice
10
Raised area of land, smaller than a mountain
11
Wearing away of land by water or wind
12
Goods sold to another country
13
Goods brought in from another country
14
Land surrounded by water