Post-traumatic stress disorder is a mental illness that can develop after someone has been involved in a very bad experience such as a war. (MEDICAL)
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Post-traumatic stress disorder is a mental illness that can develop after someone has been involved in a very bad experience such as a war. (MEDICAL)
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Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012