在PRC，坐牢俗称劳改，囚犯俗称劳改犯。劳改即劳动改造，疑似传承自苏联的"劳动改造营管理总局"，即[古拉格](https://w.wiki/7kyu)。
QOTO: Question Others to Teach Ourselves An inclusive, Academic Freedom, instance All cultures welcome. Hate speech and harassment strictly forbidden.
