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अपनी भाषा में प्लॉट जोड़ेंThe dramatization of the life of Kang Yeong-woo who became the first visually impaired Korean man to earn a Ph.D. Yeong-woo became famous for his work in developing a braille alphabet for th... सभी पढ़ेंThe dramatization of the life of Kang Yeong-woo who became the first visually impaired Korean man to earn a Ph.D. Yeong-woo became famous for his work in developing a braille alphabet for the Korean languageThe dramatization of the life of Kang Yeong-woo who became the first visually impaired Korean man to earn a Ph.D. Yeong-woo became famous for his work in developing a braille alphabet for the Korean language