/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: timmingg https://cdn.slidesharecdn.com/profile-photo-timmingg-48x48.jpg?cb=1523283367 Nothing in the world is difficult for one who sets his mind on it. å … 毅‧