公园的设计概念是敏感的生态条件，反映了该地区的文化，并提供经济机会。
The park's design concept is sensitive to ecological conditions, reflects the culture of the region, and provides economic opportunities.
国外对选择性旅游的研究主要集中在对其涵义的理解和其给旅游接待地的经济、社会文化及生态环境造成的影响方面，尤其是经济方面。
The research about alternative tourism abroad focuses on the understanding of its meaning and its effect on economy, social culture and environment of tourism destination, especially on economy.
我们讨论东汉洛阳地方的经济生活和文化历史时，不应当忽略与此有关的生态环境的背景。
On discussing the economic life and cultural history of Luoyang in the Eastern Han Dynasty, we should attach an importance to its ecological and environmental background.
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