横向
1
Person who buys and sells goods
2
Exchange of goods between peoples
6
Practice of farming and growing food
8
Succession of rulers from same family
9
Period of ten years
10
Ancient Mesoamerican civilization
纵向
1
Government ruled by a king or queen
2
Payment made to show submission
3
Fortified medieval residence
4
Military conflict or fight
5
Object made by humans from the past
7
Movement of people to new areas