横向
1
Government ruled by a king or queen
6
Military blockade of a fortified place
7
Medieval land-for-service system
8
Long and distinct period of history
9
Person with no fixed home
纵向
2
Ancient Egyptian stone monument
3
Alloy of copper and tin used in early tools
4
Period of one hundred years
5
Succession of rulers from same family
10
Metal that replaced bronze in tools
11
Movement of people to new areas