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https://ieltsmatters.com/%D8%AF%D8%A7%D9%86%D9%84%D9%88%D8%AF-%D8%B1%D8%A7%DB%8C%DA%AF%D8%A7%D9%86-%DA%A9%D8%AA%D8%A7%D8%A8-academic-vocabulary-in-use/