ºÝºÝߣshows by User: tokayuki / http://www.slideshare.net/images/logo.gif ºÝºÝߣshows by User: tokayuki / ºÝºÝߣShare feed for ºÝºÝߣshows by User: tokayuki https://public.slidesharecdn.com/v2/images/profile-picture.png ¤Þ¤À´óѧÉú