Group 1 - The event "International Chinese Language Day" was held at the University of Social Sciences in Poland, attended by nearly 300 participants including diplomats, local officials, and students [1][2] - Chinese Ambassador to Poland, Sun Linjiang, emphasized the importance of language as a bridge for mutual understanding and cultural exchange between China and Poland [1][2] - Polish officials expressed a desire to deepen cooperation with China in areas such as trade, education, and culture, highlighting the significance of the event for cultural understanding [2] Group 2 - The event featured speeches on the importance of language in national identity and cultural heritage, as well as the beauty of the Chinese language [2] - Attendees engaged in various traditional Chinese cultural activities, including calligraphy, paper-cutting, and tea art, showcasing the richness of Chinese culture [2][3] - The exhibition "Elegance and Harmony: The Aesthetic of Life in Chinese Characters" was supported by the Center for Language Exchange and Cooperation, further promoting cultural exchange [2]