横向
1
Movement of people to new areas
6
Person with no fixed home
7
Legislative body in ancient Rome
8
Government by the people
10
Formal agreement between nations
11
Ancient empire that conquered much of Europe
纵向
2
Uprising against authority
3
Union formed for mutual benefit
4
Exchange of goods between peoples
5
Sudden overthrow of a government
9
Period of ten years
12
Payment made to show submission
13
Belonging to a very old period
