run-of-the-mill /ˌrʌnə(v)ðəˈmɪl/
  (a.)非經選拔的,非精選的,普通的
  run-of-the-mill
       adj : not special in any way; "run-of-the-mill boxing"; "your
             run-of-the-mine college graduate"; "a unexceptional an
             incident as can be found in a lawyer's career" [syn: run-of-the-mine,
              mine run, unexceptional]