At this level, the child can understand the main ideas of complex text on both concrete and abstract topics, including technical discussions in their field of specialization. They will be able to interact with a degree of fluency and spontaneity that makes regular interaction with native speakers quite possible without strain. They will learn to write clear and detailed texts on a wide range of subjects, explaining a viewpoint on a topical issue. Vocabulary acquisition becomes more nuanced, including idiomatic expressions and advanced grammatical structures, allowing for more sophisticated argumentation and debate.