/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: pattyap1 https://cdn.slidesharecdn.com/profile-photo-pattyap1-48x48.jpg?cb=1523240001 ...A close book, where you can write anything, and if you ever want to open it, you don't need a key....