tùi-khió對口

to speak or sing alternately

to speak or sing alternately (of two performers); to be geared to the needs of the job; to fit in with one's vocational training or specialty; to suit one's taste; to one's taste; counterpart; alternate

musicTCM

English Wiktionary, “對口” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%B0%8D%E5%8F%A3 · confidence: Medium (Wiktionary, Hokkien)