past master
Longman Dictionary of Contemporary English 5++LDOCE 5++ˌpast ˈmaster noun [countable] someone who is very skilled at doing something and has done it many times before 老手；内行；专家 SYN expertpast master at (doing) something She’s a past master at exploiting other people. 她很会利用别人。
Examples from the Corpus
past master• Guy had proved himself a past master at the art.• Johnny Morris is a past master at both.• He's a past master at keeping his whereabouts secret, laying false trails.• That sort of thing wasn't her style at all, but Susan was a past master at it.• Such a fellow is Colin Fletcher, long-distance trekker, amateur naturalist and past master of great escapes.• What they will see is light in the form of an installation by that past master of lux deluxe, Dan Flavin.past master at (doing) something• Guy had proved himself a past master at the art.• Johnny Morris is a past master at both.• He's a past master at keeping his whereabouts secret, laying false trails.• That sort of thing wasn't her style at all, but Susan was a past master at it.ˌpast ˈmaster nounChineseSyllable
doing Corpus who very skilled at something is someone
past master
ˌpast ˈmaster
noun [countable]
someone who is very skilled at doing something and has done it many times before
SYN expert
past master at (doing) something
She’s a past master at exploiting other people.
ˌpast ˈmaster
noun [countable]someone who is very skilled at doing something and has done it many times before
SYN expert
past master at (doing) something