Hellow guys, Welcome to my website, and you are watching [EBS 클래스e] '4차 산업혁명, 초연결 시대의 시작' 함께 시청해요!. and this vIdeo is uploaded by 대통령직속 4차산업혁명위원회 at 2021-02-15T01:02:54-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
