横向
1
Exchange of goods between peoples
4
Ancient Egyptian stone monument
5
Alloy of copper and tin used in early tools
6
Period of one hundred years
7
Person who travels to discover new lands
9
Military conflict or fight
10
Succession of rulers from same family
纵向
1
Formal agreement between nations
2
Payment made to show submission
3
Medieval religious military campaign
8
Person with no fixed home
11
Legislative body in ancient Rome
12
Sudden overthrow of a government