横向
1
Advanced stage of human society
7
Government ruled by a king or queen
8
Roman arena fighter
9
Period of ten years
10
Movement of people to new areas
11
Exchange of goods between peoples
12
Relating to the Middle Ages
纵向
2
Person who buys and sells goods
3
Union formed for mutual benefit
4
Alloy of copper and tin used in early tools
5
Armored warrior of medieval times
6
Freedom from outside control