paroxysmal

例句：

1. 1.The patient's symptoms were paroxysmal and intermittent.
   患者的病症是发作性的，时断时续。
2. 2.The paroxysmal nature of the disease requires close monitoring.
   这种疾病的发作性质需要密切监控。
3. 3. His paroxysmal laughter often made me laugh too.
   他的间歇性笑声常常让我也跟着笑。