求翻译：中国作为全球最大的发展中国家正在向旅游大国悄然迈进。然而，随着我国旅游业的发展，旅游对环境、社会、文化的负面影响正逐渐被人们所认识。与此同时，生态环境恶化，不良思想泛滥，管理体制混乱，这些问题就像一扇紧闭的门，挡住了我国生态旅游前进的步伐，而打开这扇门的钥匙就是生态旅游的可持续发展。是什么意思？

China as the world's largest developing country is a big tourism country forward quietly. However, with the development of China's tourism industry, the negative impact of tourism on the environment, social and cultural gradually been recognized. At the same time, the deterioration of the ecological

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China is making great strides forward quietly as the global biggest developing nation to the traveling great nation.However, along with our country tourism development, travels to the environment, social, the cultural negative influence was being known gradually by the people.At the same time, the e

As the largest developing country, China is striding toward the tourism nation quietly. However, with the development of China's tourism industry, tourism on the negative environmental, social, and cultural influence was gradually being recognized. At the same time, deterioration of the ecological e