横向
1
Ancient Egyptian ruler
5
Exchange of goods between peoples
7
Payment made to show submission
8
Alloy of copper and tin used in early tools
9
Union formed for mutual benefit
10
Ancient Mesoamerican civilization
纵向
1
Deadly epidemic disease
2
Long and distinct period of history
3
Uprising against authority
4
Sudden overthrow of a government
6
Succession of rulers from same family