横向
1
Vast body of salt water
5
Half of the Earth
6
Goods sold to another country
7
Large natural elevation of earth
8
Deep narrow valley with steep sides
10
Area where water covers the soil
13
Long-term weather patterns of an area
纵向
2
One of seven major landmasses
3
Physical features of land
4
Distance east or west of prime meridian
9
Wearing away of land by water or wind
11
Piece of land jutting into the sea
12
Largest hot desert in the world