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Jyutping giu3 hou2 bat1 giu3 zo6
Pinyin jiào hǎo bù jiào zuò

Definitions (CC-CANTO)
  1. Something that is of high quality, but it is not selling well.
Definitions (Wiktionary)
  1. phrase, idiomatic
    describes a movie or play that receives critical acclaim but poor sales at the box office