横向
1
Long and distinct period of history
2
Ancient Egyptian stone monument
4
Formal agreement between nations
5
Person who buys and sells goods
7
Alloy of copper and tin used in early tools
8
Union formed for mutual benefit
9
Military conflict or fight
纵向
2
Deadly epidemic disease
3
Person owned as property
5
Movement of people to new areas
6
Period of one hundred years