一旦监管松懈,已经整治过的乱象就可能复发,甚至变本加厉。Yídàn jiānguǎn sōngxiè, yǐjīng zhěngzhì guò de luànxiàng jiù kěnéng fùfā, shènzhì biànběnjiālì.Once regulation slackens, the problems that had already been rectified may recur, and may even intensify.
他的老毛病又复发了,只好请假去医院。Tā de lǎo máobìng yòu fùfā le, zhǐhǎo qǐngjià qù yīyuàn.His old ailment has flared up again, so he had to take leave and go to the hospital.
这种皮肤病很容易复发,平时要注意饮食。Zhè zhǒng pífūbìng hěn róngyì fùfā, píngshí yào zhùyì yǐnshí.This skin disease easily recurs, so you should watch your diet in everyday life.