横向
1
Fundamental law of a nation
6
Ancient Mesoamerican civilization
8
Exchange of goods between peoples
9
Object made by humans from the past
纵向
2
Belonging to a very old period
3
Government elected by the people
4
Government ruled by a king or queen
5
Deadly epidemic disease
7
Armored warrior of medieval times
10
Person owned as property
11
Medieval land-for-service system