in a fever

例句：

1. 1. She was in a fever and couldn't sleep all night.
   她发烧了一整夜，睡不着。
2. 2. He was in a state of shock after the accident.
   事故发生后，他处于震惊状态。
3. 3. The patient was in a high fever and required medical attention.
   病人高烧不退，需要医疗照顾。