横向
1
Exchange of goods between peoples
3
Fundamental law of a nation
4
Government elected by the people
6
Union formed for mutual benefit
9
Person with no fixed home
11
Legislative body in ancient Rome
12
Armed entry into another territory
纵向
1
Payment made to show submission
2
Sudden overthrow of a government
3
Fortified medieval residence
5
Formal agreement between nations
7
Person owned as property
8
Long and distinct period of history
10
Object made by humans from the past