past t master技艺精湛的人
sport past master金企鹅
Mend past master缝补高手
a past master高手
Past master confesses too高手过招
Become table tennis past master成为台球高手
N-COUNT（可数名词） If you are a past master at something, you are very skilful at it because you have had a lot of experience doing it. 行家; 老手 [usu N 'at/in/of' n]
He was a past master at manipulating the media for his own ends.
操纵媒体为自己服务他是老手。