旅游业对自然环境有正反两方面的影响。
Tourism has negative and positive impacts on natural environment.
我们应该保护自然环境，支持生态旅游。
We should protect our natural environment and support ecotourism.
旅游者应该履行保护自然环境的责任和尊重当地特色文化的责任。
Tourists also have to protect the environment and respect the traditional culture in tourism destinations.
旅游者应该履行保护自然环境的责任和尊重当地特色文化的责任。
Tourists also have to protect the environment and respect the traditional culture in tourism destinations.
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