横向
1
Medieval land-for-service system
3
Military blockade of a fortified place
4
Alloy of copper and tin used in early tools
5
Ancient Mesoamerican civilization
8
Practice of farming and growing food
9
Ancient empire that conquered much of Europe
纵向
2
Relating to the Middle Ages
3
Legislative body in ancient Rome
4
Military conflict or fight
6
Practice of establishing foreign colonies
7
Person owned as property