Hellow guys, Welcome to my website, and you are watching 12분 만에 정리하는 20세기 우주 개발의 역사 [북툰 과학다큐]. and this vIdeo is uploaded by 북툰 at 2021-01-21T04:00:03-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
