横向
1
Large territory under one ruler
2
Military conflict or fight
5
Practice of establishing foreign colonies
6
Metal that replaced bronze in tools
7
Territory controlled by another country
9
Payment made to show submission
11
Male monarch ruler
14
Person owned as property
纵向
2
Alloy of copper and tin used in early tools
3
Union formed for mutual benefit
4
Movement of people to new areas
8
Formal agreement between nations
10
Sudden overthrow of a government
12
Period of ten years
13
Succession of rulers from same family