/ http://www.slideshare.net/images/logo.gif / 狠狠撸Share feed for 狠狠撸shows by User: ssuserc4c1c2 https://public.slidesharecdn.com/v2/images/profile-picture.png 世界上没有任何东西可以永恆。如果它流动，它就流走；如果它存着，它就干涸；如果它生长，它就慢慢凋零