翻译一下句子：（尽量避免使用复杂的句型）

Our nation's tourism must be developed in a sustainable way. We should pay great attention to the tourist culture and environmental protection. Thus we may protect our cultural heritage and natural landscape and make tourism a sustainable green industry. (译者注：用的都是简单句型。）

Tourism industry of our country must be on the way of sustainable development, emphasized on construction to tourist culture and environment protection with high recognition. So is to the effect that protecting our cultural heritage and natural scenery would become tourism industry into a sustainable developing green industry.

Our nation's tourism industry must take the path of sustainable development, and attach great importance to cultural tourism and environmental protection construction. In order to protect our cultural heritage and natural landscape, tourism as a sustainable development of the green industry.