横向
1
Ancient Mesoamerican civilization
4
Belonging to a very old period
5
Long and distinct period of history
6
Exchange of goods between peoples
7
Military blockade of a fortified place
纵向
2
Object made by humans from the past
3
Armed entry into another territory
8
Freedom from outside control
9
Ancient empire that conquered much of Europe
10
Person who buys and sells goods