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No known copyright restrictionsNo restrictionshttps://www.flickr.com/commons/usage/false
这幅图片原始出处为Flickr的https://flickr.com/photos/105662205@N04/27637373703 ,作者为berkeley_geography 。经机器人FlickreviewR在2016年12月16日审查后确定为采用No known copyright restrictions的协议授权使用。