本文为甘涌酒店研究院原创内容，未经授权禁止转载，转载请注明出处。文中引用资料均尽力标注来源，如涉及版权争议，请联系后台核实删除。

业务微信:GHRI-8889

This article is the original article from Gan Yong Hotel Research Institute. Unauthorized reprint is prohibited. Please give reference information when reprinting. The cited materials in the article have been ascribed to the sources as much as possible. If there is any copyright dispute，please contact the back office for verification and deletion. 

Business WeChat： GHRI-8889