際際滷shows by User: LeonNeoh / http://www.slideshare.net/images/logo.gif 際際滷shows by User: LeonNeoh / 際際滷Share feed for 際際滷shows by User: LeonNeoh https://cdn.slidesharecdn.com/profile-photo-LeonNeoh-48x48.jpg?cb=1523305963 THe man who confesses his ignorance shows it once; he who tries to conceal it shows it many times.