recurrence period

例句：

1. 1. The patient's condition is expected to improve in the next few weeks.
   患者的病情预计在接下来的几周内会有所改善。
2. 2.The research has shown that the recurrence rate of this disease is relatively high.
   研究表明，这种疾病的复发率相对较高。
3. 3. The project's success depends on the effective management of its recurrence and maintenance phases.
   该项目的成功取决于有效管理其重复和维持阶段。