Hellow guys, Welcome to my website, and you are watching 산과 염기를 정리해볼까요 [초등 과학 5학년 2학기 5단원 11차시]. and this vIdeo is uploaded by 수지샘클래쓰 at 2020-12-09T18:39:17-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
