/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: ssuserdf66f4 https://public.slidesharecdn.com/v2/images/profile-picture.png 열심히 잘 ì‚´ê³  있지요. 힘내어 나아갑시다