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Additionally, this paper explores the implications of Dy business on market competition, consumer behavior, and industry growth. The Fast Hand 24-hour self-service free order software and QQ Space free card serve as prime examples of how Dy business models can offer convenience, affordability, and value to customers. By delving into the design and functionality of these products, we can better understand how Dy businesses are able to attract a large customer base and drive sales volume. Overall, this study sheds light on the transformative impact of Dy business on the market landscape and the opportunities it presents for industry players.。