Explanation
Means 'not just A, but even B'; 'let alone A, even B'.
Formation
Noun1 + はおろか + Noun2 + まで
Detailed explanation
The phrase 'Noun はおろか' emphasizes something beyond the obvious. It can be translated as 'not only ..., but even ...'. The '～まで' part extends that idea further to show an unexpected or more advanced case.
Examples
Kare wa eigo wa oroka, nihongo made perapera nan desu.
He is not just fluent in English, but even in Japanese.
Kanojo wa suugaku wa oroka, butsuri made tokui nan desu.
She is not just good at math, but even at physics.
Kono ryouri wa mitame wa oroka, aji made saikou da.
This dish is not only visually appealing, but it even tastes fantastic.
Kare wa uta wa oroka, dansu made umai da.
He is not just good at singing, but even at dancing.
Practice
Grammar content sourced from hanabira.org.