All classes and exams at Cheong-un were conducted in Korean. Even the few foreign professors taught in the language, their fluency indistinguishable from a native’s. With Korean having become the world’s lingua franca, its study was now a cornerstone of education across the globe.
But a foreign language was still a foreign language. Its global status didn't make it any easier to learn, and for non-natives, Korean remained a formidable challenge
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