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Jyutping se5 wui2 goi2 gaak3
Pinyin shè huì gǎi gé

Definitions (Wiktionary)
  1. noun
    social reform
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    他们忙于社会改革。
    他們忙於社會改革。
    tā men máng yú shè huì gǎi gé 。
    • They were busy working for social reforms.
Examples (Wiktionary)
  1. Mandarin
    社会改革家
    社會改革家
    shè huì gǎi gé jiā
    • social reformer