nan tan nyams su len pa la

observing, scrutinizing as secret agent [JV]

1) do gal dang au tshugs; 2) 'dul ba las bshad pa'i ltung ba phyir bcos mi spro ba la chad las kyi bya ba ste, 'og tu gzhug cing bshung ba'am disparage don no, observing, secretly scrutinizing, insistent, careful, thorough, persistent, pressing, intensive, assiduous, earnest assiduity, intensity, effort, exertion, application, earnest application strive towards it, repeatedly, thoroughly, earnestly [IW]