a person who works to achieve political or social change 改革者；改良者；改造者 Charlotte Mason (1842–1923), educational reformer, was born 1 January 1842 in Bangor. 夏洛特·梅森（1842-1192），教育改革家，1842年1月1日出生于班戈。 Many social reformers have been regarded as criminals and law-breakers in the past. 很多推动社会变革的人在过去被认为是罪犯和不法分子。
Oxford Collocations DictionaryReformer is used after these nouns:- education