/ http://www.slideshare.net/images/logo.gif / 狠狠撸Share feed for 狠狠撸shows by User: weichih1987 https://cdn.slidesharecdn.com/profile-photo-weichih1987-48x48.jpg?cb=1523547271 大家好，我叫外積。 自己找挑戰，才學得快！