勞動改造 [劳动－－]

Jyutping lou4 dung6 goi2 zou6
Pinyin láo dòng gǎi zào

Definitions (CC-CEDICT)
  1. reeducation through labor
  2. laogai (prison camp)
Definitions (Wiktionary)
  1. noun
    reform through labor; a slogan used by the criminal justice system of the People's Republic of China to refer to its prison labor system
    (syn.) 勞改, 劳改