现代大学生的体育意识与行为问题已经引起许多专家、学者的关注，对此也进行了诸多研究。

Sports consciousness and behavior problems of modern university students have attracted the attention of many experts and scholars, who also have conducted a lot of research.

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成分品牌联盟的现有研究多专注于企业整体层面，很少关注消费者的态度、认知与行为问题。

The existing studies on ingredient brand ally focus on enterprises with little attention to consumers' attitudes, cognition and behavior problems.

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因此，关注和研究城镇居民的休闲行为，构成了一个在理论、实践与政策等层面上都必需高度重视的问题。

So it's very important to pay high attention to the leisure behaviors of the urban residents both on theory and practice, as well as policy making.

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