no obj.
1- (of someone suffering from a disease) suffer deterioration after a period of improvement（患者病情好转后）重新恶化, （病）复发。
1.1
relapse into
return to (a less active or a worse state)返回（先前状态）; 返回（不佳状态）：he relapsed into silence.
他再次陷入沉默。
/亦读ˈriːlæps/
- a deterioration in someone's state of health after a temporary improvement（旧病的）复发; 恶化：
he suffered a relapse of schizophrenia after a car crash.
车祸后他的精神分裂症复发了。
派生词
relapser
noun词源
late Middle English: from Latin relaps- 'slipped back', from the verb relabi, from re- 'back' + labi 'to slip'. Early senses referred to a return to heresy or wrongdoing.