Definitions of both tourism and tourist are subject to debate, since a simple definition of tourism such as "traveling for pleasure" merely invites a second wave of questions.
旅游业以及旅游的定义是值得商议的，因为对于旅游业的简单定义，例如“为了开心而旅游”，会引发一系列的更多的疑问。
It also re-limits the tourist commodity science definition based on the existing definitions analysis.
在分析现有各种定义的基础上重新界定了旅游商品的科学定义。
Beginning with the definition of the ecological tourism, the paper offers 100 ideas of the tourist attraction ecologicalization.
本文从生态旅游概念的界定出发，就旅游景区生态化提出了100招。
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