横向
1
Armed entry into another territory
5
Armed conflict between nations
6
Belonging to a very old period
9
Person who buys and sells goods
12
Ancient empire that conquered much of Europe
纵向
2
Uprising against authority
3
Government elected by the people
4
Alloy of copper and tin used in early tools
7
Succession of rulers from same family
8
Advanced stage of human society
10
Object made by humans from the past
11
Sudden overthrow of a government