chronic spinal muscular atrophy

例句：

1. 1.This patient has been suffering from chronic spinal muscular atrophy for many years.
   这位患者已经患有慢性脊髓肌肉萎缩症多年了。
2. 2. The child's condition is similar to that of someone with chronic spinal muscular atrophy.
   这个孩子的病情与患有慢性脊髓肌肉萎缩症的人相似。
3. 3.The family was devastated when they learned their son had been diagnosed with chronic spinal muscular atrophy.
   当家人得知他们的儿子被诊断出患有慢性脊髓肌肉萎缩症时，他们感到非常震惊。