横向
1
Period of ten years
5
Territory controlled by another country
8
Union formed for mutual benefit
9
Armed conflict between nations
10
Person who buys and sells goods
11
Deadly epidemic disease
纵向
2
Object made by humans from the past
3
Exchange of goods between peoples
4
Belonging to a very old period
6
Sudden overthrow of a government
7
Legislative assembly of a country
12
Advanced stage of human society