横向
1
Ancient empire that conquered much of Europe
3
Legislative assembly of a country
4
Armed entry into another territory
5
Practice of farming and growing food
6
Medieval land-for-service system
8
Union formed for mutual benefit
纵向
2
Person who buys and sells goods
3
Deadly epidemic disease
7
Metal that replaced bronze in tools
9
Period of one hundred years
10
Medieval religious military campaign
11
Belonging to a very old period
12
Person with no fixed home