ecotourism
美 [ˈekoʊˌtʊrɪzəm]英 [ˈiːkəʊˌtʊərɪz(ə)m]
- n.生态旅游
- 网络生态观光;生态旅行;生态旅游业

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Establishment of the system about evaluating the ecotourism hierarchy is the key to the ecotourism certification.
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