横向
1
Metal that replaced bronze in tools
4
Payment made to show submission
5
Medieval land-for-service system
9
Territory controlled by another country
10
Exchange of goods between peoples
11
Armed conflict between nations
12
Ancient Egyptian ruler
纵向
2
Person with no fixed home
3
Military blockade of a fortified place
6
Handwritten historical document
7
Object made by humans from the past
8
Roman arena fighter