際際滷shows by User: ivonnl1 / http://www.slideshare.net/images/logo.gif 際際滷shows by User: ivonnl1 / 際際滷Share feed for 際際滷shows by User: ivonnl1 https://cdn.slidesharecdn.com/profile-photo-ivonnl1-48x48.jpg?cb=1524089214 "i love physics"