横向
1
Person who buys and sells goods
3
Military blockade of a fortified place
6
Sudden overthrow of a government
9
Succession of rulers from same family
纵向
1
Movement of people to new areas
2
Exchange of goods between peoples
3
Person owned as property
4
Period of ten years
5
Medieval land-for-service system
7
Practice of establishing foreign colonies
8
Union formed for mutual benefit