狠狠撸shows by User: sumitde / http://www.slideshare.net/images/logo.gif 狠狠撸shows by User: sumitde / 狠狠撸Share feed for 狠狠撸shows by User: sumitde https://cdn.slidesharecdn.com/profile-photo-sumitde-48x48.jpg?cb=1711373969 MSc.(Appl.Maths), DSM(NIIT),