This article takes the ecology of competitive sports in China as research object, select typical cases of competitive sports, using big data scraping tools web crawling technology and building web crawling programs to extract the reviewers' feelings, trends (positive, negative, neutral) and the frequency of comment word by capturing the news content, comment content and reply comments on social media such as Tiktok, Weibo, Xiaohongshu, etc for the analysis ang research on the phenomenon of "Fan Circle" in competitive sports .The results show that the phenomenon of “Fan Circle” in Chinese competitive sports is becoming increasingly prominent, it seriously damaging the healthy competitive sports ecology system which is with competition oriented, diverse coexistence, and sustainable development. At the same time, this article proposes rectification measures and regulatory suggestions for the phenomenon of the "Fan Circle" in competitive sports, including strengthening the main responsibility of the Internet, stimulating the leading role of mainstream media and public figures, doing a good job in media professional quality education and information control, improving the legal system, etc. It can provide reference and strategic support for building a green, healthy, and harmonious sports ecologyhat not only maintains the purity of competitive sports spirit, but also adapts to the commercialization and popularization needs of modern society, and it has certain reference significance.

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In today's internet-enabled world, where the popularity of social media use has become the norm. Social media, as a platform for people to exchange information and share their lives, tends to make people lose their sense of time and at the same time feel dependent on social media platforms. The emergence of this phenomenon just goes to show that social media can be addictive to people with poor self-control. To explore the impact of social media on people specifically, this study selects a group of college students and explores the key effects that social media addiction has on college students. At the same time to provide a theoretical basis for the prevention of students' physical and mental health in colleges and universities, this experiment used the questionnaire method to collect 111 samples, and the collected data were analysed for reliability and validity, and the Clonbach coefficient was obtained as 0.797 (0.7 < α < 0.8) to prove that the survey has a good reliability. Through the correlation test, it was obtained that there is a negative correlation between social media addiction and college students‘ sleep quality, a negative correlation between social media addiction and college students’ social relationships, and a positive correlation between social media addiction and college students' mood swings. The somatic and psychological health conditions of college students are significantly affected by social media dependence disorder, and the more addiction there is, the greater the impact on their physical and emotional health, including both physical and mental aspects.

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Contemporary environmental design is facing dual challenges of technological innovation and cultural inheritance. The rapid development of digital manufacturing technology provides unprecedented innovation possibilities for environmental design, while the cultural values and craftsmanship spirit embedded in traditional crafts constitute important foundations for design. This study employs methods including literature analysis, case studies, and field research to deeply explore the integration models, implementation pathways, and development prospects of digital manufacturing technology and traditional crafts in contemporary environmental design. The research findings reveal that the integration process faces issues such as insufficient technical compatibility, cultural cognitive differences, and lagging talent development. In response to these problems, this paper proposes countermeasures and suggestions including technical standardization construction, cross-cultural design concept cultivation, and talent development system improvement. The research results indicate that the deep integration of digital manufacturing technology and traditional crafts can not only enhance the innovation capability of environmental design but also effectively protect and inherit traditional culture, providing new approaches for sustainable design development.

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Hyponymy is a common phenomenon in linguistics. Although hyponymy has been widely used in daily life, seldom will people pay attention to the mechanisms that lead to hyponymy. In order to solve this problem, this paper aims to explore the deep meaning of hyponymy and intends to re-explain it on the basis of Saussure’s system-based theory. By introducing and comparing the relevant concepts, including Saussure’s system-based theory and the definition of hyponymy in a general sense, this paper argues that the relationship between hypernym and hyponym has some similarities with the schema-instance relationship, which is reflected by Saussure’s language system. Based on Saussure’s system-based theory, this paper succeeds in re-explaining the deep meaning of hyponymy from both the longitudinal dimension and the crosswise dimension and providing a new explanatory path for hyponymy. Results show that language is a holistic system, where the hierarchical, transitive, irreversible and relative characters are founded in the longitudinal analysis, and the difference and opposition in the same layer occur in the horizontal study.

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