抽絲剝繭 (cau1 si1 mok1 gaan2) — painstakingly get to the bottom of sth; a meticulous investigation into sth. in Cantonese
cauˉ¹抽siˉ¹絲mokˉ¹剝gaanˊ²繭简 抽丝剥茧
Mandarin Pinyin: chou1 si1 bo1 jian3
Meaning of 抽絲剝繭
nounpainstakingly get to the bottom of sth; a meticulous investigation into sth.