illness of child viscera affecting mother one

例句：

1. 1.He has been suffering from a chronic illness for years.
   他多年来一直患有慢性疾病。
2. 2. The doctor diagnosed her with a serious illness.
   医生诊断她患有严重的疾病。
3. 3. The patient was in a lot of pain due to his illness.
   由于他的疾病，病人感到非常痛苦。