Hi guys, Welcome to the Advanced Video Search Engine, and you are watching 선생님 아이 몸무게는 어느 정도가 정상인가요? [4개월 아기 발달]. That video is uploaded by 육아닥터 김숙자 at 2020-05-09T07:57:19-07:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [YJRlXC0xhVo]