/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: happy2help https://cdn.slidesharecdn.com/profile-photo-happy2help-48x48.jpg?cb=1523133879 I am not a book, so can not write a preview about me. well, you have to spend some precious time of your's to know me , only then it will be worthy to you.