Используйте «doctor's degree» в предложении
doctor's degree примеры предложений
doctor's degree
1. The late President Harper of the University of Chicago was married at nineteen--not so young in his case, for he had already taken his doctor's degree
skyscraper
skyscraper
1. The late President Harper of the University of Chicago was married at nineteen--not so young in his case, for he had already taken his doctor's degree