横向
1
Territory controlled by another country
5
Government elected by the people
6
Practice of establishing foreign colonies
7
Practice of farming and growing food
8
Military blockade of a fortified place
9
Formal agreement between nations
13
Freedom from outside control
纵向
2
Union formed for mutual benefit
3
Legislative body in ancient Rome
4
Fortified medieval residence
10
Exchange of goods between peoples
11
Roman arena fighter
12
Government by the people