idiopathic muscular atrophy

例句：

1. 1.The patient exhibited idiopathic symptomswithout any known cause.
   患者表现出无特定原因的症状。
2. 2. The researcher found that thedisease was idiopathic in nature.
   研究者发现这种疾病是无特定原因的。
3. 3.Idiotism is a form ofignorance that is often idiopathic.
   白痴主义是一种常常无特定原因的无知形式。