追蹤調查

follow-up study / investigative follow-up

to sculpt / to carve / musical instrument (old)

to chase / to pursue / to look into / to investigate / to reminisce / to recall / to court (one's beloved) / to binge-watch (a TV drama) / retroactively / posthumously

to follow a trail / to trace / to pursue

footprint / trace / tracks

to transfer / to move (troops or cadres) / to investigate / to enquire into / accent / view / argument / key (in music) / mode (music) / tune / tone / melody

to harmonize / to reconcile / to blend / to suit well / to adjust / to regulate / to season (food) / to provoke / to incite

investigation / inquiry / to investigate / to survey / survey / (opinion) poll / CL:項|项[xiang4],個|个[ge4]

surname Zha

to research / to check / to investigate / to examine / to refer to / to look up (e.g. a word in a dictionary)

variant of 楂[zha1]