paroxysmal hyperthyroidism

例句：

1. 1. His paroxysmal coughing was a constant source of annoyance for him.
   他的间歇性咳嗽让他一直感到烦恼。
2. 2.The patient's paroxysmal heartbeat made it difficult for her to concentrate on the exam.
   患者的间歇性心跳让她难以集中注意力参加考试。
3. 3. The paroxysmal symptoms subsided after a few days of treatment.
   经过几天的治疗，这些间歇性症状有所缓解。