Nà / duàn / guān / yú / láo / dòng / gǎi / zào / de / jì / yì / zhì / jīn / réng / ràng / tā / nán / yǐ / shì / huái。

那段关于劳动改造的记忆至今仍让他难以释怀。

The memories of reeducation through labor still trouble him to this day.