Group 1 - The article highlights the dedication of researchers and students who continue their work during holidays, particularly during the "May Day" holiday, emphasizing the importance of commitment to scientific research [1][2][3] - The successful testing of a "smart active ultra-surface system" at a 5G pilot base station in Wuhan is mentioned, showcasing the challenges posed by complex urban terrain on signal coverage [1] - The achievement of a student team in winning a national award at the "Challenge Cup" competition is celebrated, reflecting the hard work and dedication of both students and their mentor [2] Group 2 - The article discusses the collaborative environment in research, where brainstorming sessions lead to innovative ideas, such as applying AI algorithms to enhance wireless signal systems [3] - It emphasizes the value of hard work in research, comparing it to more traditional forms of labor, and highlights the satisfaction derived from contributing to scientific advancements [3] - The commitment to continue writing a new chapter for Chinese researchers through persistent labor and innovation is expressed, aligning with the spirit of the "May Day" holiday [3]