横向
1
Person who travels to discover new lands
6
Succession of rulers from same family
7
Collection of traditional stories
8
Person owned as property
10
Ancient Mesoamerican civilization
纵向
2
Exchange of goods between peoples
3
Union formed for mutual benefit
4
Person who buys and sells goods
5
Long and distinct period of history
7
Government ruled by a king or queen
9
Roman arena fighter