notknowasinglecharacter;absolutelyilliterate;一字不識
Idon'tknowhimatall.;He'saperfectstrangertome.我與他素不相識。
shownounderstandingofthetimes;不識時務
notknowhowtoappreciatefavours不識抬舉
learning;knowledge;學識
foresightandsagacity;遠見卓識
ShiGonghao識公浩
recognize, understand, know