/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: hitoshisugisawa https://cdn.slidesharecdn.com/profile-photo-hitoshisugisawa-48x48.jpg?cb=1523372988 öŠ·ò¤Ç¤¹¡£