横向
1
Largest hot desert in the world
4
Wearing away of land by water or wind
6
Seasonal heavy rainfall
8
Chain or group of islands
9
Body of water surrounded by land
纵向
2
Deep narrow valley with steep sides
3
Where river meets the sea
5
Ocean between Americas and Europe/Africa
7
Goods brought in from another country
10
Goods sold to another country
11
Distance east or west of prime meridian