追根

to trace sth back to its source / to get to the bottom of sth

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

root / basis / classifier for long slender objects, e.g. cigarettes, guitar strings / CL:條|条[tiao2] / radical (chemistry)

lit. to examine roots and inquire at the base (idiom); to get to the bottom of sth

see 追根究底[zhui1 gen1 jiu1 di3]

to track sth to its roots

to pursue sth back to its origins / to trace back to the source / to get to the bottom of sth

to get to the heart of the matter

erhua variant of 追根究底[zhui1 gen1 jiu1 di3]