横向
1
Armed conflict between nations
3
Large territory under one ruler
6
Practice of establishing foreign colonies
7
Military conflict or fight
8
Practice of farming and growing food
12
Payment made to show submission
纵向
2
Ancient empire that conquered much of Europe
4
Handwritten historical document
5
Legislative body in ancient Rome
9
Medieval land-for-service system
10
Succession of rulers from same family
11
Deadly epidemic disease