横向
1
Advanced stage of human society
4
Freedom from outside control
7
Medieval land-for-service system
8
Exchange of goods between peoples
9
Person who travels to discover new lands
13
Person who buys and sells goods
14
Territory controlled by another country
纵向
2
Ancient empire that conquered much of Europe
3
Union formed for mutual benefit
5
Payment made to show submission
6
Legislative assembly of a country
10
Armored warrior of medieval times
11
Fundamental law of a nation
12
Military conflict or fight