/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: ryotakao142 https://cdn.slidesharecdn.com/profile-photo-ryotakao142-48x48.jpg?cb=1523566084 ʱ¼Æ¤äÑó·þ¤¬È¤Î¶¤Ç¤¹¡£