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The reason I changed this article is because I think Longzhong is a famous Chinese history scenic area, so more detail information of its environment and history should be introduced. So I rearranged the format of the article and added more information about its history and environment into the article. I tried to add a picture there, but I really have problem with the editing process, I don't really know how to add a picture there. So if anyone wanna help and add a picture there, that will be great. Also, if anyone think my information there are not enough and want to add more into it, it is also welcomed.