横向
1
Exchange of goods between peoples
3
Government elected by the people
5
Alloy of copper and tin used in early tools
7
Movement of people to new areas
9
Practice of farming and growing food
10
Medieval land-for-service system
11
Government by the people
12
Deadly epidemic disease
纵向
2
Person with no fixed home
3
Ancient empire that conquered much of Europe
4
Fortified medieval residence
6
Medieval religious military campaign
8
Ancient Egyptian picture writing