recurrent reaction

例句：

1. 1. The disease has a tendency to recur after treatment.
   这种疾病在治疗后有复发的趋势。
2. 2. The patient's condition is recurrent, requiring regular follow-ups.
   患者的病情反复出现，需要定期复查。
3. 3.The research found that certain genes are involved in the recurrence of cancer.
   研究发现某些基因与癌症复发有关。