秦汉统治者曾在三峡西口的鱼复县建立江关,派兵戍守,原因在于当地瞿塘峡航道狭窄,又有险滩,两岸陆路崎岖,容易阻击溯江来犯者。刘......

With the promotion of rural revitalization strategy,the protection of ancient villages belonging to characteristic villa......