横向
1
Metal that replaced bronze in tools
3
Ancient Mesoamerican civilization
4
Succession of rulers from same family
6
Collection of traditional stories
8
Large territory under one ruler
纵向
2
Roman arena fighter
5
Military conflict or fight
6
Person who buys and sells goods
7
Exchange of goods between peoples
9
Alloy of copper and tin used in early tools
10
Formal agreement between nations