1. 倒退：retrospect 回想,回顧 | retrogress 倒退 | se- 離開、分開

2. 倒退,退化：progressive 进步的,先进的;渐次的,累进的 | retrogress 倒退,退化 | retrogression 倒退,退化,退步

3. 倒退,退步：retro-向后、回、反 | retrogress 倒退,退步 | retrograde 后退,倒退

1. go back to bad behavior

    e.g. Those who recidivate are often minor criminals

    Synonym: relapselapserecidivateregressfall back

2. get worse or fall back to a previous condition

    Synonym: regressretrograde