backslide

详细解释:vi. 堕落, 退步
n. 堕落, 退步

词型变化：

名词:backslider动词过去式:backslid过去分词:backslid现在分词:backsliding第三人称单数:backslides

英语解释：

动词 backslide:

drop to a lower level, as in one's morals or standards同义词：lapse