"스마트폰, 정신 훼손"…조선시대 '일타강사'는? #shorts / KBS KBSNews 0 22 08.12 17:50 https://www.youtube.com/watch?v=z3KkNVhHmtA + 3 https://www.youtube.com/feeds/videos.xml?channel_id=UCcQTRi69dsVYHN3ex… + 3 "스마트폰, 정신 훼손"…조선시대 '일타강사'는? #shorts / KBS