Hellow guys, Welcome to my website, and you are watching [중2 물질의 구성] 5강. 이온의 전하를 확인하는 방법. and this vIdeo is uploaded by 은혜로운 과학생활 at 2020-05-24T06:25:11-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
