横向
1
Person who buys and sells goods
4
Medieval land-for-service system
5
Ancient Egyptian ruler
6
Large territory under one ruler
9
Government ruled by a king or queen
11
Legislative assembly of a country
12
Movement of people to new areas
14
Formal agreement between nations
纵向
2
Armed entry into another territory
3
Ancient Egyptian stone monument
7
Succession of rulers from same family
8
Object made by humans from the past
10
Alloy of copper and tin used in early tools
13
Military blockade of a fortified place
15
Freedom from outside control