波状热

例句：

1. 1. He had a bout of fever, and his temperature kept rising and falling.
   他发了一场高烧，体温时高时低。
2. 2. The patient's body temperature was in a constant fluctuation.
   患者的体温一直在波动。
3. 3. During the summer, many people experience bouts of periodic fevers due to the heat.
   夏天，由于高温，许多人会经历周期性发热。