横向
1
Succession of rulers from same family
6
Military conflict or fight
7
Medieval land-for-service system
8
Period of one hundred years
9
Union formed for mutual benefit
10
Ancient Mesoamerican civilization
11
Person who buys and sells goods
纵向
2
Practice of establishing foreign colonies
3
Military blockade of a fortified place
4
Roman arena fighter
5
Legislative assembly of a country