横向
1
Region surrounding the North Pole
3
Line dividing two countries
6
Seasonal heavy rainfall
7
Wearing away of land by water or wind
9
Goods brought in from another country
10
Ocean between Americas and Europe/Africa
12
Height above sea level
纵向
2
Mountain that can erupt with lava
4
Large natural stream of water
5
Distance east or west of prime meridian
8
Piece of land jutting into the sea
11
Deep narrow valley with steep sides
13
Physical features of land