著名西班牙语专家孙家堃逝世，众多学子成为外交经贸领域中坚

Core Viewpoint - The obituary announces the passing of Sun Jiakun, a prominent figure in Spanish language education in China, who dedicated his life to fostering cultural exchange between China and Spanish-speaking countries [1][4]. Group 1: Personal Background - Sun Jiakun was born on February 28, 1941, in Tianjin and graduated from the Spanish Department of Beijing Foreign Studies University in 1965 [3]. - He joined Beijing Second Foreign Languages Institute in the same year and held various positions, including Deputy Director of the Western European Department and Director of the Spanish Department [3]. Group 2: Academic Contributions - Sun was known for his rigorous academic approach and effective teaching methods, which not only adhered to language norms but also infused wisdom and enthusiasm into his classes [3]. - He made significant contributions to the study of Sino-Western exchange history and explored Indigenous history, providing insights into the historical interactions between the old continent and the outside world [3]. Group 3: Publications and Influence - His notable works include "The Protector of the Indians - Las Casas," "Economic and Trade Dictionary of the Western Han," and "History of China and Spain," among others, which have had a lasting impact on students and the field [3][4]. - Sun Jiakun's legacy includes a wide network of students who have become key figures in diplomacy, trade, culture, and education both domestically and internationally [4].