/ http://www.slideshare.net/images/logo.gif / 狠狠撸Share feed for 狠狠撸shows by User: nguyenhieubg https://cdn.slidesharecdn.com/profile-photo-nguyenhieubg-48x48.jpg?cb=1602175094 I鈥檝e always been interested in the meaning of life. I 'm very interested in knowledge sharing. knowledge is unlimited and the best way to learn something is to learn it from experience of others