23下四六级词汇课 第34讲 长城

state——陈述，国家，状态

emperor皇帝

fortification n. 碉堡，防御工事；强化，设防

empire帝国

borders边疆

protect....from 保护xx不受xx

Mythology myth

man-made=Artificial人工的

associated with=related to=have something to do with.相关.

originated in起源于

marvel奇迹=wonder

claim言论

contradicted by

assumption假设

orbit轨道

construction=structure结构，建造