横向
1
Formal agreement between nations
4
Government by the people
5
Exchange of goods between peoples
6
Object made by humans from the past
12
Armored warrior of medieval times
13
Advanced stage of human society
纵向
2
Person owned as property
3
Military conflict or fight
4
Succession of rulers from same family
7
Practice of farming and growing food
8
Alloy of copper and tin used in early tools
9
Medieval land-for-service system
10
Roman arena fighter
11
Ancient Egyptian picture writing