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Learning a foreign language is crucial in today's interconnected world. As the world becomes more globalized, people from different countries are interacting with each other more frequently. Knowing a foreign language will not only improve your career opportunities but also broaden your cultural knowledge. In Vietnam, English is the most commonly taught foreign language. Mastering English opens doors to better job prospects, especially in multinational companies. Moreover, English is the language of science, technology, and tourism, making it an essential tool for students and professionals alike. Learning a foreign language also enhances your travel experiences. When visiting a foreign country, speaking the local language helps you communicate with the locals, appreciate their customs, and navigate unfamiliar places. In addition, learning a foreign language delays cognitive decline and improves memory. Studies have shown that bilingual individuals have a lower risk of developing age-related cognitive disorders, such as Alzheimer's and dementia. In conclusion, learning a foreign language is vital in today's world. It not only enhances career opportunities but also broadens cultural knowledge, improves travel experiences, and benefits cognitive health. Therefore, it is essential for Vietnamese students to prioritize learning English to stay competitive in the global market.