这是位于云南省大理州沙溪镇北龙村的先锋沙溪白族书局（4月20日摄）。沙溪镇位于云南省大理州剑川县。自唐宋起，沙溪镇便因丰饶的物产和平坦的地势，成为茶马古道上的贸易重镇。马帮驮着茶叶、盐巴与丝绸，一路翻山越岭，在此休整交易。[新华社记者 胡超 摄]
People visit a bookshop at Beilong Village of Shaxi Town, Jianchuan County, southwest China's Yunnan Province, April 20, 2025. A remote town in Jianchuan County, Shaxi was once an important trading hub for tea, herbs, silks and salt on the ancient Tea Horse Road, a trade route dating back to the Tang Dynasty (618-907). (Xinhua/Hu Chao)
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