横向
1
Formal agreement between nations
2
Military blockade of a fortified place
3
Ancient empire that conquered much of Europe
4
Ancient Egyptian ruler
7
Practice of farming and growing food
8
Legislative body in ancient Rome
纵向
1
Exchange of goods between peoples
2
Person owned as property
5
Metal that replaced bronze in tools
6
Person who travels to discover new lands
9
Period of ten years