phian-lôo偏勞

to give someone undue trouble

to give someone undue trouble (used when asking somebody for help or thanking somebody for his help)

English Wiktionary, “偏勞” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%81%8F%E5%8B%9E · confidence: Medium (Wiktionary, Hokkien)