横向
1
Medieval land-for-service system
4
Deadly epidemic disease
5
Formal agreement between nations
6
Ancient Egyptian picture writing
7
Person owned as property
8
Large territory under one ruler
9
Belonging to a very old period
纵向
2
Union formed for mutual benefit
3
Object made by humans from the past
5
Exchange of goods between peoples
10
Person with no fixed home
11
Movement of people to new areas