I am studying for MD degree with Prof. Li as my tutor(导师) right now.——略换角度,本意未变I study as a MD candidate guided/tutored(2选1) by Prof. Li.I am a MD postgraate directed by Prof. Li.印象中,postgraate似较candidate常见些,毕竟后者还可译为准(博专士),即已考取博士、但还未属入学者,可能引起歧义...供参Ph.D candidate of Medecine