DICT.TW Dictionary Taiwan

 nit·ty-grit·ty /ˈnɪtiˌgrɪti, ˌnɪtiˈ/
 事實真相,本質

 nitty-gritty
      n : the choicest or most essential or most vital part of some
          idea or experience; "the gist of the prosecutor's
          argument"; "the heart and soul of the Republican Party";
          "the nub of the story" [syn: kernel, substance, core,
           center, essence, gist, heart, heart and soul,
          inwardness, marrow, meat, nub, pith, sum]