横向
1
Large slow-moving mass of ice
4
Area where water covers the soil
6
Region surrounding the North Pole
7
Seasonal heavy rainfall
8
Distance east or west of prime meridian
9
Line dividing two countries
10
Ocean between Americas and Europe/Africa
12
Wearing away of land by water or wind
纵向
2
Goods brought in from another country
3
Physical features of land
5
Imaginary line around the middle of Earth
11
Low area between mountains
13
Tool for finding directions