/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: fanpingkong https://cdn.slidesharecdn.com/profile-photo-fanpingkong-48x48.jpg?cb=1523437416 Physics -> Biology -> ??? There is not necessary to focus on the same thing all the time. Surprise is waiting for you any time and any place as long as you are ready.