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Jyutping bat1 loeng4 jan4
Pinyin bù liáng rén

Definitions (Wiktionary)
  1. noun, archaic
    official in charge of making arrests
    (syn.) 不良

不良人 [---]

Jyutping
Pinyin bù liáng rén

Definitions (CC-CEDICT)
  1. (Tang dynasty) official responsible for tracking down and arresting lawbreakers