Rollo que tonge decir "RRRRoberto", se puede hacer esto? R" in spanish is very difficult to pronounce for Chinese. The native spanish speakers always making fun of Chinese about that. It is better to get some audio media, listen and practice. BBC learning foreign language is very helpful, it is free. I have a link to BBC at http://arcoplaza.com, you will find the BBC learning foreign language under e-learning section.