The student correctly uses subject-specific terminology relevant to the chosen article and the key concept of interdependence, including terms such as "investment," "tariffs," "exports," "aggregate demand," and "trade surplus." The incorporation of this terminology is evident throughout the commentary, showcasing a solid understanding of economic principles and the relationship between economic variables. The discussion effectively connects the analysis to the interdependence between South Korea and the U.S. in trade relations, particularly through the examination of tariffs' impacts. Overall, the student's use of terminology enhances the clarity and depth of the analysis.